Publication Lists

Japanese Page

Journal Papers

2025

  • S. Toyooka, Y. Kajikawa, ``Active Noise Control Systems with Sound Source Localization Robust to Noise Source Movement,’’ IEICE Trans. on Fundamentals, vol. E108-A, no. 2, Feb. 2025. [doi: 10.1587/transfun.2024EAL2007]

2024

  • S. Kita, C. S. Park, Y. Kajikawa, ``Sound Source Localization for Source inside a Structure using Ac-CycleGAN,’’ Journal of Sound and Vibration, vol. 591, 118616, Nov. 2024. [doi: 10.1016/j.jsv.2024.118616]

2023

  • M. Tsujikawa, Y. Kajikawa, ``Low-Complexity and Accurate Noise Suppression Based on an A priori SNR Model for Robust Speech Recognition on Embedded Systems and Its Evaluation in a Car Environment,’’ IEICE Trans. on Fundamentals, vol. E106-A, no. 9, pp. 1224-1233, Sep. 2023. [doi: 10.1587/transfun.2022EAP1130]
  • S. Kita, Y. Kajikawa, "Sound Source Localization Inside a Structure Under Semi-supervised Conditions," IEEE/ACM Trans. on Audio, Speech, and Language Pro-cessing, vol. 31, pp. 1397-1408, Apr. 2023. [doi: 10.1109/TASLP.2023.3263776]
  • M. Tsujikawa, A. Sugiyama, K. Hanazawa, Y. Kajikawa, ``High-Performance In-Car Microphone Array System with a Fron-Rear Microphone Arrangement,’’ IEICE Trans. on Fundamentals, vol. J106-A, no. 2, pp. 21-39, Feb. 2023. [doi: 10.14923/transfunj.2022JAP1009]
  • T. Miyake, K. Iwai and Y. Kajikawa, "Head-Mounted Multi-Channel Feedforward Active Noise Control System for Reducing Noise Arriving from Various Directions," IEEE Access, vol. 11, pp. 6935-6943, Jan. 2023. [doi: 10.1109/ACCESS.2023.3237812]

2022

  • Y. Nakahira, K. Iwai, Y. Kajikawa, "Efficient Realization for Third-Order Volterra Filter Based on Singular Value Decomposition," Applied Sciences, vol. 12, issue 21, 10710, Dec. 2022. [doi: 10.3390/app122110710]
  • S. Itani, S. Kita, Y. Kajikawa, "Multimodal Personal Ear Authentication Using Acoustic Ear Feature for Smartphone Security," IEEE Trans. on Consumer Electronics, vol. 68, no. 1, pp. 77-84, Feb. 2022. [doi: 10.1109/TCE.2021.3137474]

2021

  • K. Motonaka, T. Koseki, S. Miyoshi, Y. Kajikawa, "Statistical-Mechanical Analysis of Adaptive Volterra Filter with the LMS algorithm," IEICE Trans. on Fundamentals, vol. E-104A, no. 12, pp. 1665--1674, Dec. 2021. [doi: 10.1587/transfun.2021EAP1013]
  • S. Kita, Y. Kajikawa, "Fundamental Study on Sound Source Localization inside a Structure using Deep Neural Network and Computer-Aided Engineering," Journal of Sound and Vibration, vol. 513, 116400, Nov. 2021. [doi: 10.1016/j.jsv.2021.116400]

2020

  • D. Y. Shi, W. -S. Gan, B. Lam, R. Hasegawa, Y. Kajikawa, "Feedforward Multichannel Virtual-sensing Active Control of Noise through an Aperture: Analysis of Causality and Sensor-actuator Constraints," The Journal of Acoustical Society of America, vol. 147, no. 1, pp. 32-48, Jan. 2020. [doi: 10.1121/10.0000515]

2019

  • S. Kinoshita, Y. Kajikawa, "New Sub-band Adaptive Volterra Filter for Identification of Loudspeaker," IEICE Trans. on Fundamentals, vol. E-102A, no. 12, pp. 1946-1955, Dec. 2019. [doi: 10.1587/transfun.E102.A.1946]
  • S. Nakamura, K. Iwai, Y. Kajikawa, ``Acoustic Design Support System of Compact Enclosure for Smartphone Using Deep Neural Network,'' IEICE Trans. on Fundamentals, vol. E-102A, no. 12, pp. 1932-1939, Dec. 2019. [doi: 10.1587/transfun.E102.A.1932]
  • K. Iwai, S. Kinoshita, Y. Kajikawa, ``Multichannel feedforward active noise control system combined with noise source separation by microphone arrays,’’ Journal of Sound and Vibration, vol. 453, pp. 151-173, Aug. 2019. [doi: 10.1016/j.jsv.2019.04.016]

2018

  • S. Miyoshi, Y. Kajikawa, ``Statistical-Mechanics Approach to Theoretical Analysis of the FXLMS Algorithm,’’ IEICE Trans. on Fundamentals, vol. E-101, no. 12, pp. 2419-2433, Dec. 2018. [doi: 10.1587/transfun.E101.A.2419]
  • K. Iwai, S. Hase, Y. Kajikawa, ``Multichannel Feedforward Active Noise Control System with Optimal Reference Microphone Selector Based on Time Difference of Arrival,’’ Applied Sciences, vol. 8, issue 11, pp. 1-17, Nov. 2018. [doi: 10.3390/app8112291]
  • T. Murata，Y. Kajikawa，S. Miyoshi，``Statistical-Mechanical Analysis of Multi-channel Active Noise Control,’’ Transactions of the Institute of Systems, Control and Information Engineers, vol. 30, no. 5, pp. 184-190, May 2018 (in Japanese). [doi: 10.5687/iscie.31.184]
  • K. Terauchi，K. Motonaka，Y. Kajikawa，S. Miyoshi，``Statistical-Mechanical Analysis on Adaptation Rate and Its Measures of Active Noise Control,’’ IEEJ Transactions on Electronics, Information and Systems, vol. 138, no. 4, pp. 369-374, Apr. 2018 (in Japanese). [doi: 10.1541/ieejeiss.138.369]
  • K. Iwai, Y. Kajikawa, ``Modified Second-order Nonlinear Infinite Impulse Response (IIR) Filter for Equalizing Frequency Response and Compensating Nonlinear Distortions of Electrodynamic Loudspeaker,’’ Applied Acoustics, vol. 132, pp. 202-209, Mar. 2018. [doi: 10.1016/j.apacoust.2017.11.014]

2017

  • M. Niedzwiecki, M. Ciolek, Y. Kajikawa, ``On Adaptive Covariance and Spectrum Estimation of Locally Stationary Multivariate Processes,’’ Automatica, vol. 82, pp. 1-12, Aug. 2017. [doi: 10.1016/j.automatica.2017.04.033]
  • Y. Hatano, C. Shi, Y. Kajikawa, ``Compensation for Nonlinear Distortion of the Frequency Modulation Based Parametric Array Loudspeaker,’’ IEEE/ACM Transactions on Audio, Speech, and Language Processing, vol. 25, issue 8, pp. 1709-1717, May 2017. [doi: 10.1109/TASLP.2017.2705280]
  • N. Ishibushi, Y. Kajikawa, S. Miyoshi, ``Statistical-Mechanical Analysis of LMS Algorithm for Time-Varying Unknown System,’’ Journal of the Physical Society of Japan, vol. 86, 024803, Jan. 2017. [doi: 10.7566/JPSJ.86.024803]
  • K. Tanaka, C. Shi, Y. Kajikawa, ``Binaural Active Noise Control Using Parametric Array Loudspeakers,’’ Applied Acoustics, vol. 116, pp. 170-176, Jan. 2017. [doi: 10.1016/j.apacoust.2016.09.021]

2016

  • C. Shi, Y. Kajikawa, ``Volterra Model of the Parametric Array Loudspeaker Operating at Ultrasonic Frequencies,’’ Journal of the Acoustical Society of America, vol. 140, no. 5, pp. 3463-3650, Nov. 2016.[doi: 10.1121/1.4966962]
  • C. Shi, Y. Kajikawa, ``Effect of the Ultrasonic Emitter on the Distortion Performance of the Parametric Array Loudspeaker,’’ Applied Acoustics, vol. 112, pp. 108-115, Nov. 2016. [doi: 10.1016/j.apacoust.2016.05.013]

2015

  • C. Shi, Y. Kajikawa, W.-S. Gan, "Generating Dual Beams from a Single Steerable Para-metric Loudspeaker," Applied Acoustics, vol. 99, pp. 43-50, Dec. 2015. [doi:10.1016/j.apacoust.2015.05.004]
  • N. Miyazaki, Y. Kajikawa, "Head-mounted Active Noise Control System with Virtual Sensing Technique," Journal of Sound and Vibration, vol. 339, pp. 65-83, Mar. 2015. [doi:10.1016/j.jsv.2014.11.023]
  • K. Iwai, Y. Kajikawa, "Third-order Nonlinear IIR Filter for Compensating Nonlinear Distortions of Loudspeaker Systems," IEICE Trans. on Fundamentals, vol. E98-A, no. 3, pp. 820-832, Mar. 2015.
  • C. Shi, Y. Kajikawa, "A Convolution Model for Computing the Far-field Directivity of a Parametric Loudspeaker Array," Journal of the Acoustical Society of America, vol. 137, no. 2, pp. 777-784, Feb. 2015. [doi:10.1121/1.4906163]

2014

  • C. Shi, Y. Kajikawa, W.-S. Gan, "An Overview of Directivity Control Methods of the Parametric Array Loudspeaker," APSIPA Trans. on Signal and Information Processing, vol. 3, e20 (12 pages), Dec. 2014. [doi:10.1017/ATSIP.2014.18]
  • K. Iwai, Y. Kajikawa, "Parameter Estimation Method Using Volterra Kernels for Nonlinear IIR Filters," IEICE Trans. on Fundamentals, vol. E97-A, no. 11, pp. 2189-2199, Nov. 2014.
  • N. Miyazaki, Y. Kajikawa, "Modified-Error Adaptive Feedback Active Noise Control System Using Linear Prediction Filter," IEICE Trans. on Fundamentals, vol. E97-A, no. 10, pp. 2021-2032, Oct. 2014.

2012

  • Y. Mishima, Y. Kajikawa, "Automatic Parameter Adjustment Method for Audio Equalizer Employing Interactive Genetic Algorithm," IEICE Trans. on Fundamentals, vol. E95-A, no. 11, pp. 2036-2040, Nov. 2012.
  • Y. Kajikawa, W.-S. Gan, S. M. Kuo, "Recent Advances on Active Noise Control: Open Issues and Innovative Applications," APSIPA Trans. on Signal and Information Pro-cessing, vol. 1, issue 1, Aug. 2012. [doi:10.1017/ATSIP.2012.4]
  • M. Nakamura, Y. Kajikawa, Y. Nomura, T. Miyakura, "Effect of Spatial Relationship between Acoustic Holes on Acoustic Characteristics for Compact Acoustic Reproduction Systems: Estimation Method of Acoustic Parameters Considering Spatial Relationships and the Shape of Acoustic Elements", The Journal of the Acoustical Society of Japan, vol. 68, no. 6, pp. 277-287, 2012/06/01.

2011

  • K. Gotoda, Y. Kajikawa, "Linearization of Loudspeaker Systems Using Volterra Filter and Its Comuptational Reduction", The Transactions of the Institute of Electronics, Information and Communication Engineers A, vol. J94-A, no. 10, pp. 791-794, 2011/10/01.
  • Y. Kajikawa, "Linearization Method Based on Multiple Loudspeaker Systems", Acoustical Science and Technology, vol. 32, no 5, pp. 220-223 , 2011/09/01.
  • S. Miyoshi, Y. Kajikawa, "Statistical-mechanics Approach to the Filtered-X LMS Algorithm", Electronics Letters, vol. 47, no. 17, pp. 997-999, 2011/08/18. [doi:10.1049/el.2011.1691]
  • M. Kumamoto, M. Kida, R. Hirayama, Y. Kajikawa, T. Tani, Y. Kurumi, "Active Noise Control System for Reducing MR Noise", IEICE Trans. on Fundamentals, vol. E94-A, no. 7, pp. 1479-1486 , 2011/07/01.
  • S. Kitakagawa, Y. Kajikawa, "Linearization Ability Evaluation for Loudspeaker Systems Using Dynamic Distortion Measurement", IEICE Trans. on Fundamentals, vol. 94-A, no. 2, pp. 813-816, 2011/02/01.

2008

  • H. Murai, Y. Tsuyuguchi, Y. Kajikawa, Y. Nomura, "Proposal of a Noise Reduction Method Using DFE and Threshold-based Decision for Nondirected Non-LOS Link Optical Wireless Communications", The Transactions of the Institute of Electronics, Information and Communication Engineers B, Vol. J91-A, No. 11, pp.1522-1527, 2008/11/01.
  • R. Nakao, Y. Kajikawa, Y. Nomura, "An Estimation Method of Parameters for Closed-box Loudspeaker System", IEICE Trans. on Fundamentals, Vol. EA91-A, No. 10, pp. 3006-3013, 2008/10/01.
  • S. Ohta, Y. Kajikawa, Y. Nomura, "Acoustic Echo Cancellation Using Sub-Adaptive Filter", IEICE Trans. on Fundamentals, Vol. EA91-A, No. 4, pp. 1155-1161, 2008/04/01.
  • K. Tsukamoto, Y. Kajikawa, Y. Nomura, "Sound Field Reproduction System Using Simultaneous Perturbation Method", IEICE Trans. on Fundamentals, Vol. EA91-A, No. 3, pp. 801-808, 2008/03/01.
  • Y. Tokoro, Y. Kajikawa, Y. Nomura, "Introduction of an Updating Algorithm Considering Frequency Characteristic of Secondary Path for Active Noise Control System Using Simultaneous Perturbation Method", The Transactions of the Institute of Electronics, Information and Communication Engineers A, Vol. J91-A, No. 2, pp. 274-278, 2008/02/01.

2007

  • T. Ashida, S. Konishi, H. Nakamura, Y. Kajikawa, Y. Nomura, "Target Frequency Response for Design of Headphones", The Journal of the Acoustical Society of Japan, Vol. 64, No. 1, pp. 16-26, 2007/12/25.
  • H. Furuhashi, Y. Kajikawa, Y. Nomura, "Linearization of Loudspeaker Systems Using a Subband Parallel Cascade Volterra Filter", IEICE Trans. on Fundamentals, Vol. EA90-A, No. 8, pp. 1616-1619, 2007/08/01.
  • Y. Tokoro, Y. Kajikawa, Y. Nomura, "Improvement of the Stability and Cancellation Performance for the Active Noise Control System Using the Simultaneous Perturbation Method", IEICE Trans. on Fundamentals, Vol. EA90-A, No. 8, pp. 1555-1563, 2007/08/01.

2006

  • K. Igata, Y. Kajikawa, Y. Nomura, "Acoustic Echo Cancellation with Noise Suppressor for Updating Algorithm", The Transactions of the Institute of Electronics, Information and Communication Engineers A, Vol. J89-A, No. 12, pp. 1119-1129, 2006/12/01.

2005

  • M. Kajiwara, Y. Kajikawa, Y. Nomura, "Construction of Acoustic Design Support System for Compact Transducer", The Transactions of the Institute of Electronics, Information and Communication Engineers A, Vol. J88-A, No. 10, pp. 1100-1108, 2005/10/01.
  • M. Ohtani, Y. Kajikawa, Y. Nomura, "Acoustic Echo Cancellation with Sub-Adaptive Filter", The Transactions of the Institute of Electronics, Information and Communication Engineers A, Vol. J88-A, No. 9, pp. 1013-1025, 2005/09/01.
  • D. Kumatabara, Y. Kajikawa, Y. Nomura, "Low Computational Complexity Realization of Compensation Method for Harmonic Distortions", The Transactions of the Institute of Electronics, Information and Communication Engineers A, Vol. J88-A, No. 7, pp. 862-863, 2005/07/01.

2004

  • T. Mori, T. Ainoya, Y. Kajikawa, Y. Nomura, "Realization of Active Noise Control System Using Simultaneous Perturbation Method", The Journal of the Acoustical Society of Japan, Vol. 60, No. 10, pp. 569-580, 2004/10/01.
  • N. Yamamoto, Y. Kajikawa, Y. Nomura, "Relationship between Frequency Response and Sound Quality of Headphone", The Journal of the Acoustical Society of Japan, Vol. 60, No. 2, pp. 61-65, 2004/02/01.

2003

  • J. Hamada, Y. Kajikawa, and Y. Nomura, "Development of a Software Tool for Eliminating Nonlinear Distortion", Acoustical Science and Technology, Vol. 24, No. 4, pp. 186-191, 2003/07/01.
  • T. Ohtoshi, Y. Kajikawa, Y. Nomura, "Effectiveness of the Block Length Control in the Frequency-Domain Summational Normalized Block LMS Algorithm for Adaptive Volterra Filters", The Transactions of the Institute of Electronics, Information and Communication Engineers A, Vol. J86-A, No. 7, pp. 797-780, 2003/07/01.
  • T. Nakatani, Y. Kajikawa, Y. Nomura, "An Automatic Design Method for Compact Acoustic Systems by the Genetic Algorithm", The Transactions of the Institute of Electronics, Information and Communication Engineers A, Vol. J86-A, No. 6, pp. 611-619, 2003/06/01.
  • S. Kinoshita, Y. Kajikawa, Y. Nomura, "Adaptive Volterra Filters Using Multirate Signal Processing and Their Application to Identification of Loudspeaker Systems", The Transactions of the Institute of Electronics, Information and Communication Engineers A, Vol. J86-A, No. 4, pp. 393-401, 2003/04/01.
  • T. Mori, Y. Kajikawa, and Y. Nomura, "Frequency Domain Active Noise Control Systems Using the Time Difference Simultaneous Perturbation Method," IEICE Trans. on Funda-mentals, Vol. EA86-A, No. 4, pp. 946-949, 2003/04/01.
  • T. Mori, Y. Kajikawa, Y. Nomura, "An Active Noise Control System Using Frequency Domain Simultaneous Perturbation Method with a Variable Perturbation Magnitude", The Transactions of the Institute of Electronics, Information and Communication Engineers A, Vol. J86-A, No. 2, pp. 101-110, 2003/02/01.

2002

  • Y. Sugiyama, Y. Kajikawa, Y. Nomura, "An Improvement of the Overall Online Modeling Method in Active Noise Control Systems", The Transactions of the Institute of Electronics, Information and Communication Engineers A, Vol. J85-A, No. 12, pp. 1478-1482, 2002/12/01.
  • S. Kinoshita, Y. Kajikawa, Y. Nomura, "Aliasing Avoidance And Reduction of Computational Complexity in Volterra Filters", The Transactions of the Institute of Electronics, Information and Communication Engineers A, Vol. J85-A, No. 1, pp. 10-16, 2002/01/01.

2001

  • T. Ikezoe, Y. Kajikawa, Y. Nomura, "Music database retrieval system with sensitivity words using music sensitivity space", Transactions of Information Processing Society of Japan, Vol. 42, No. 12, pp. 3201-3212, 2001/12/15.
  • Y. Kajikawa and Y. Nomura, "Frequency Domain Active Noise Control System without a Secondary Path Model via Perturbation Method", IEICE Trans. on Fundamentals, Vol. EA84-A, No. 12, pp. 3090-3098, 2001/12/01.
  • M. Tsujikawa, Y. Kajikawa, Y. Nomura, "Identification of Third-order Volterra Kernels by Frequency Response Method and Its application to Loudspeaker Systems", The Transactions of the Institute of Electronics, Information and Communication Engineers A, Vol. J84-A, No. 11, pp. 1333-1345, 2001/11/01.
  • Y. Kajikawa, K. Ashitaka, Y. Nomura, "Frequency-Domain Active Noise Control System Using Optimal Step Sizes", The Transactions of the Institute of Electronics, Information and Communication Engineers A, Vol. J84-A, No. 7, pp. 883-892, Jul. 2001/07/01.
  • Y. Hashimoto, Y. Kajikawa, Y. Nomura, "Impulse Noise Removal Technique Considering Directional Difference of Image Signal", The Transactions of the Institute of Electronics, Information and Communication Engineers A, Vol. J84-A, No. 6, pp. 759-768, 2001/06/01.
  • Y. Hashimoto, Y. Kajikawa, Y. Nomura, "Removal of Impulse Noise Using Impulse Noise Position Information by High Performance Impulse Detector", The Transactions of the Institute of Electronics, Information and Communication Engineers A, Vol. J84-A, No. 1, pp. 1-12, 2001/01/01.

2000

  • Y. Hashimoto, Y. Kajikawa, Y. Nomura, "Directional Difference-Based Switching Median Filters", The Transactions of the Institute of Electronics, Information and Communication Engineers A, Vol. J83-A, No. 10, pp. 1131-1140, 2000/10/01.
  • M. Tsujikawa, N. Shiozaki, Y. Kajikawa, Y. Nomura, "Identification of Loudspeaker Systems Using Frequency Response Method", The Journal of the Acoustical Society of Japan, Vol. 56, No. 6, pp. 384-395, 2000/06/01.
  • Y. Hashimoto, Y. Kajikawa, Y. Nomura, "Directional Difference Filter: Its Effectiveness in the Post-Processing of Noise Detectors", The Transactions of the Institute of Electronics, Information and Communication Engineers A, Vol. J83-A, No. 4, pp. 361-369, 2000/04/01.
  • K. Yanasaka, F. Seki, Y. Kajikawa, Y. Nomura, "Neural Filters Considering Power Variations of Input Signal", The Transactions of the Institute of Electronics, Information and Communication Engineers A, Vol. J83-A, No. 3, pp. 253-262, 2000/03/01.

1999

  • Y. Takahama, Y. Kajikawa, Y. Nomura, "A Formulation of the Convergence Property for the Second-Order Adaptive Volterra Filter Using NLMS Algorithm", The Transactions of the Institute of Electronics, Information and Communication Engineers A, Vol. J82-A, No. 7, pp. 944-953, 1999/07/01.
  • Y. Kajikawa, Y. Nomura, "Convergece Condition of the Simultaneous Perturbation Optimization method applied to adaptive filters", The Transactions of the Institute of Electronics, Information and Communication Engineers A, Vol. J82-A, No. 6, pp. 792-799, 1999/06/01.
  • Y. Kajikawa, "Adaptive Volterra Filter:Its Present and Future", The Transactions of the Institute of Electronics, Information and Communication Engineers A, Vol. J82-A, No. 6, pp. 759-768, 1999/06/01.
  • T. Sakamoto, Y. Kajikawa, Y. Nomura, "Classification of Group According to Tune's Impression Using Nonlinear Distirction Analysis in the Music Sensibility Space", Transactions of Information Processing Society of Japan, Vol. 40, No. 4, pp. 1901-1909, 1999/04/15.
  • Y. Kajikawa, Y. Nomura, "An Active Noise Control System without Secondary Path Model", The Transactions of the Institute of Electronics, Information and Communication Engineers A, Vol. J82-A, No. 2, pp. 209-217, 1999/02/01.
  • Y. Kajikawa, Y. Nomura, "An Online Design Method of Nonlinear Inverse System by Adaptive Volterra Filter", The Transactions of the Institute of Electronics, Information and Communication Engineers A, Vol. J82-A, No. 1, pp. 1-10, 1999/01/01.

1998

  • Y. Kajikawa, K. Demoto, Y. Nomura, "An Analysis of the Convergence Property of Active Noise Control System Using Augmented Error", The Transaction of the Institute of Electronics, Information and Communication Engineers A, Vol. J81-A, No. 6, pp. 942-952, 1998/06/01.

1997

  • J. Yabuki, Y. Kajikawa, Y. Nomura, "A Derivation of the Stable Condition for the Filtered-x LMS Algorithm in the Case where C Filter has Modeling Error", The Transactions of the Institute of Electronics, Information and Communication Engineers A, Vol. J80-A, No. 11, pp. 1868-1876, 1997/11/01.
  • Y. Takahama, Y. Kajikawa, Y. Nomura, "The Convergence and Stability Conditions of the NLMS Algorithm for the Adaptive Volterra Filter", The Transactions of the Institute of Electronic, Information and Communication Engineers A, Vol. J80-A, No. 7, pp. 1201-1204, 1997/07/01.
  • Y. Kajikawa, Y. Nomura, J. Ohga, "A Determination Method of the Sizes of Telephone-Hardset from the Corresponding Acoustic Parameters with Neural Network", The Journal of the Acoustical Society of Japan, Vol. 53, No. 4, pp. 277-284, 1997/04/01.

1996

  • Y. Kajikawa, Y. Nomura, "A Design for Nonlinear Inverse System by the Adaptive Volterra Filter", The Transactions of the Institute of Electronics, Information and Communication Engineers A, Vol. J79-A, No 11, pp. 1808-1816, 1996/11/01.
  • T. Ishikawa, K. Nakajima, Y.Kajikawa, Y. Nomura, "A Consideration on Elimination of Nonlinear Distortion of the Loudspeaker System by Using Digital Volterra Fiter", The Transaction of the Institute of Electronics, Information and Communication Engineers A, Vol. J79-A, No. 7, pp. 1236-1243, 1996/07/01.
  • Y. Kajikawa, Y. Nomura, J. Ohga, "An Automatic Design Method for the Acoustic Parameters of Telephone-Handsets Reducing the Effects of Leak by Monte Carlo Method", IEICE Trans. Fundamentals, Vol. E79-A, No. 6, pp. 825-835, 1996/06/01.
  • Y. Kajikawa, Y. Nomura, J. Ohga, "An Automatic Design Method for the Telephone-Handsets by the Neural Natwork", The Transaction of the Institute of Electronics, Information and Communication Engineers A, Vol. J79-A, No. 4, pp. 837-844, 1996/04/01.

1995

  • Y. Kajikawa, Y. Nomura, J. Ohga, "Possibility of Reducing an Effect of Leak by an Automatic Design of Telephone-Handset Using Nonlinear Optimization Method", The Journal of the Acoustical Society of Japan, Vol. 51, No. 5, pp.349 -357, 1995/05/01.

1994

  • Y. Kajikawa, Y. Nomura, J. Ohga, "An Estimation of Acoustic Parameters of Piezo-Electric Telephone by Monte Carlo Method", The Transactions of the Institute of Electronics, Information and Communication Engineers A , Vol. J78-A, No.1, pp. 1-11, 1995/01/01.


International Conferences

2023

  • M. Tsujikawa, A. Sugiyama, K. Hanazawa, Y. Kajikawa, "Linear Microphone Array Par-allel to the Driving Direction for in-Car Speech Enhancement," 2023 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2023), Rhodes Island, Greece, 2023/06/09.
  • S. Toyooka, Y. Kajikawa, "Hybrid Active Noise Control with Auxiliary Filter-based Vir-tual Sensing," The 52nd International Congress and Exposition on Noise Control Engi-neering (Inter-noise 2023), Chiba, Japan, 2023/08/23.
  • K. Doi, Y. Kajikawa, "SFANC with Compensation Filter Based on MEFxDCTLMS Al-gorithm," 15th Asia-Pacific Signal and Information Processing Association Annual Sum-mit and Conference (APSIPA ASC 2023), pp. 1240-1244, Taipei, Taiwan, 2023/10/31.

2022

  • R. Okajima, Y. Kajikawa, K. Oto, "Dual Active Noise Control with Common Sensors," IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2022), Singapore, pp. 8697-8701, 2022/05/23.
  • A. Okano, Y. Kajikawa, "Phase Control of Parametric Array Loudspeaker by Optimizing Sideband Weights," IEEE International Conference on Acoustics, Speech, and Signal Pro-cessing (ICASSP 2022), Singapore, pp. 31-35, 2022/05/23.
  • S. Toyooka, Y. Kajikawa, "A Study on Improving the Robustness of Virtual Sensing Methods in ANC Systems," The 51st International Congress and Exposition on Noise Control Engineering (Inter-noise 2022), Glasgow, UK, 2022/08/22.
  • S. Kita, Y. Kajikawa, "Investigation of the applicability of recurrent neural networks for structural health monitoring in the frequency domain," The 51st International Congress and Exposition on Noise Control Engineering (Inter-noise 2022), Glasgow, UK, 2022/08/23.
  • K. Kitamura, Y. Kajikawa, "A New Analysis Method for Frequency Response Analysis of Micro-Speaker Using Equivalent Circuit and Finite Element Method," 2022 IEEE 11th Global Conference on Consumer Electronics (GCCE2022), Osaka, Japan, 2022/10/19.
  • S. Toyooka, Y. Kajikawa, "An online identification method for virtual sensing in ANC system," 183rd Meeting of the Acoustical Society of America, Nashville, USA, 2022/12/06.

2021

  • Y. Makiyama, Y. Kajikawa, "Sub-band Active Noise Control with Masking Function," 27th International Congress on Sound and Vibration (ICSV27), Online, 2021/07/13.
  • M. Moritani, Y. Kajikawa, "Improving Robustness of Helmet ANC with Auxiliary Filter-Based Virtual Sensing for Head Rotation," 2021 IEEE 10th Global Conference on Consumer Electronics (GCCE2021), Nara, Japan, 2021/10/15.
  • S. Masuda, S. Kita, Y. Kajikawa, "A Study on Personal Authentication System Using Pinna Related Transfer Function and Other Sensor Information," The 20th International Symposium on Communications and Information Technologies (ISCIT 2021), Tottori, Ja-pan, 2021/10/20.
  • K. Kugiyama, K. Motonaka, Y. Kajikawa, S. Miyoshi, "Statistical-Mechanical Analysis of Adaptive Volterra Filter for Time-Varying Unknown System," 13th Asia-Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC 2021), Tokyo, Japan, 2021/12/15.
  • S. Yamanouchi, Y. Kajikawa, "A Subband Active Noise Control System with Automatic Tap Assignment in Consideration of Psychoacoustic Properties," 13th Asia-Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC 2021), Tokyo, Japan, 2021/12/16.
  • K. Iwai, T. Nishiura, Y. Kajikawa, "Formulation of Multidimensional Frequency Characteristics of Second-Order Nonlinear IIR Filter," 13th Asia-Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC 2021), Tokyo, Japan, 2021/12/16.

2020

  • Y. Makiyama, Y. Kajikawa, "A Study on Subband ANC System Considering Masking for Reducing Speech Signal," The 49th International Congress and Exposition on noise Control Engineering (Internoise 2020), Seoul, Korea, 2020/08/24.
  • K. Minami, Y. Kajikawa, "A Study on Frequency Response Analysis of Micro-speaker Using Equivalent Circuit and Finite Element Method," 2020 IEEE 9th Global Conference on Consumer Electronics (GCCE2020), Kobe, Japan, 2020/10/13.
  • S. Itani, S. Kita, Y. Kajikawa, "Multimodal Personal Ear Authentication Using Multiple Sensor Information," Asia-Pacific Signal and Information Processing Association Annual Summit and Conference 2020 (APSIPA ASC 2020), Auckland, New Zealand, 2020/12/07.
  • K. Imai, Y. Kajikawa, "Sound Wave Propagation of Parametric Array Loudspeaker with Multiple Carrier Frequency," 2020 International Workshop on Smart Info-Media Systems in Asia (SISA2020), Online, 2020/12/17.

2019

  • C. Shi, R. Xie, N. Jiang, H. Li, Y. Kajikawa, "Selective Virtual Sensing Technique for Multi-channel Feedforward Active Noise Control Systems," 2019 IEEE International Con-ference on Acoustics, Speech and Signal Processing (ICASSP2019), Brighton, UK, 2019/05/12.
  • Y. Makiyama, S. Hirose, K. Oto, Y. Komoto, Y. Kajikawa, "Effectiveness of ANC Parti-tion with Film Speaker," 23rd International Congress on Acoustics (ICA2019), Aachen, Germany, 2019/09/09.
  • R. Maeda, Y. Kajikawa, "Comparisons of Two Virtual Sensing Methods for Broadband Noise," 23rd International Congress on Acoustics (ICA2019), Aachen, Germany, 2019/09/13.
  • S. Itani, Y. Kajikawa, "Improving Robustness of Authentication System Based on Pinna Related Transfer Function," Global Conference on Consumer Electronics (GCCE2019), Osaka, Japan, 2019/10/18.
  • Y. Kajikawa, C. Shi, "Comparison of Virtual Sensing Techniques for Broadband Feed-forward Active Noise Control," 8th International Conference on Control Automation & Information Sciences (ICCAIS2019), Chengdu, China, 2019/10/25.
  • K. Nakagawa, C. Shi, Y. Kajikawa, "Beam Steering of Portable Parametric Array Loud-speaker," Asia-Pacific Signal and Information Processing Association Annual Summit and Conference 2019 (APSIPA ASC 2019), Lanzhou, China, 2019/11/20.

2018

  • R. Maeda, Y. Kajikawa, C.-Y. Chang, S. M. Kuo, ``Active Noise Control for Motor Bike Helmet Using Virtual Sensing,’’ 25th International Congress on Sound and Vibrations (ICSV25), Hiroshima, Japan, 2018/07/11.
  • R. Hasegawa, D.-Y. Shi, Y. Kajikawa, W.-S. Gan, ``Window Active Noise Control System with Virtual Sensing Technique,’’ 47th International Congress and Exposition on Noise Control Engineering (Inter-noise 2018), Illinois, USA, 2018/08/28.
  • M. Tsujikawa, K. Okabe, K. Hanazawa, Y. Kajikawa, ``Automatic Speech Translation System Selecting Target Language by Direction-of-Arrival Information,’’ 26th European Signal Processing Conference (EUSIPCO 2018), pp. 2315-2319, Rome, Italy, 2018/09/03.
  • C. Shi, Y. Kajikawa, ``A Partial-Update Minimax Algorithm for Practical Implementation of Multi-Channel Feedforward Active Noise Control,’’ 2018 16th International Workshop on Acoustic Signal Enhancement (IWAENC2018), Tokyo, Japan, 2018/09/17.
  • K. Hirai, K. Nakamura, Y. Kajikawa, K. Iwai, ``Automatic Design Support System for Compact Acoustic Devices Using Deep Neural Network,’’ 2018 IEEE 7th Global Confer-ence on Consumer Electronics (GCCE2018), Nara, Japan, 2018/10/12.
  • K. Motonaka, T. Katsube, Y. Kajikawa, S. Miyoshi, ``Statistical-Mechanical Analysis of the Second-Order Adaptive Volterra Filter,’’ Asia-Pacific Signal and Information Processing Association Annual Summit and Conference 2018 (APSIPA ASC 2018), Hawaii, USA, 2018/11/14.
  • R. Hasegawa, H. Yamashita, Y. Kajikawa, ``Effectiveness of Active Noise Control System for Nonstationary Noise in Consideration of Psychoacoustic Properties,’’ Asia-Pacific Signal and Information Processing Association Annual Summit and Conference 2018 (APSIPA ASC 2018), Hawaii, USA, 2018/11/15.
  • R. Saika, K. Iwai, Y. Kajikawa, ``Improvement of Convergence Property on Adaptive Wiener Filter Using Stochastic Gradient Adaptive Algorithm,’’ 2018 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS 2018), Okinawa, Japan, 2018/11/30.

2017

  • K. Iwai, Y. Kajikawa, ``Modification of Second-order Nonlinear IIR Filter for Compensating Linear and Nonlinear Distortions of Electrodynamic Loudspeaker,’’ 25th European Signal Processing Conference (EUSIPCO2017), Kos Island, Greece, 2017/08/28.
  • R. Hasegawa, Y. Kajikawa, C.-Y. Chang, S. M. Kuo, ``Headrest Application of Multi-Channel Feedback Active Noise Control with Virtual Sensing Technique,’’ Internoise 2017, Hong Kong, China, pp. 3513-3524, 2017/08/27.
  • Y. Higashiguchi, Y. Kajikawa, S. Kita, `` A Personal Authentication System Based on Pinna Related Transfer Function,’’ International Conference on Biometrics and Kansei En-gineering (ICBAKE2017), Kyoto, Japan, 2017/09/16.
  • T. Murata, Y. Kajikawa, S. Miyoshi, ``Statistical-mechanical Analysis of the FXLMS Al-gorithm for Multiple-channel Active Noise Control,’’ Asia-Pacific Signal and Information Processing Association 2017 Annual Summit and Conference (APSIPA ASC 2017), Kuala Lumpur, Malaysia, 2017/12/13.
  • S. Hirose, Y. Kajikawa, ``Effectiveness of Headrest ANC System with Virtual Sensing Technique for Factory Noise,’’ Asia-Pacific Signal and Information Processing Association 2017 Annual Summit and Conference (APSIPA ASC 2017), Kuala Lumpur, Malaysia, 2017/12/13.

2016

  • C. Shi, Y. Kajikawa, ``Automatic Gain Control for Parametric Array Loudspeakers,’’ Proc. of 2016 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP2016), Shanghai, China, 2016/03/25.
  • C. Shi, Y. Kajikawa, ``Synthesis of Volterra Filters for the Parametric Array Loudspeaker,’’ Proc. of 2016 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP2016), Shanghai, China, 2016/03/25.
  • M. Niedzwiecki, M. Ciolek, Y. Kajikawa, ``On Adaptive Selection of Estimation Band-width for Analysis of Locally Stationary Multivariate Processes,’’ Proc. of 2016 IEEE In-ternational Conference on Acoustics, Speech, and Signal Processing (ICASSP2016), Shanghai, China, 2016/03/25.
  • S. Kinoshita, Y. Kajikawa, ``Integrated Direct Sub-band Adaptive Volterra Filter and Its Application to Identification of Loudspeaker Nonlinearity,’’ 24th European Signal Pro-cessing Conference (EUSIPCO2016), Budapest, Hungary, 2016/08/30.
  • S. Edamoto, C. Shi, Y. Kajikawa, `` Directional Feedforward ANC System with Virtual Sensing Technique,’’ 2016 International Workshop on Smart Info-Media Systems in Asia (SISA2016), Ayutthaya, Thailand, 2016/09/15.
  • T. Harada, Y. Kajikawa, M. Nishimura, ``FPGA Implementation for Feedforward Active Noise Control with Oversampling Technique,’’ 2016 International Workshop on Smart In-fo-Media Systems in Asia (SISA2016), Ayutthaya, Thailand, 2016/09/15.

2015

  • C. Shi, Y. Kajikawa, ``Identification of the Parametric Array Loudspeaker with a Volterra Filter Using the Sparse NLMS Algorithm,’’ Proc. of 2015 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP2015), Brisbane, Australia, 2015/04/23.
  • S. Miyoshi, Y. Kajikawa, ``Statistical-Mechanical Analysis of the FXLMS Algorithm with Actual Primary Path,’’ Proc. of 2015 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP2015), Brisbane, Australia, 2015/04/21.
  • C. Shi, Y. Kajikawa, ``Ultrasound-to-Ultrasound Volterra Filter Identification of the Parametric Array Loudspeaker,’’ Proc. of 2015 IEEE International Conference on Digital Signal Processing (DSP2015), Singapore, 2015/07/22.
  • Y. Hatano, C. Shi, S. Kinoshita, Y. Kajikawa, ``A Linearization System for Parametric Array Loudspeakers Using the Parallel Cascade Volterra Filter,’’ 23rd European Signal Processing Conference (EUSIPCO2015), Nice, France, 2015/09/01.
  • T. Hase, Y. Kajikawa, `` Multi-channel ANC System Using Optimized Reference Mi-crophones Based on Time Difference of Arrival,’’ 23rd European Signal Processing Conference (EUSIPCO2015), Nice, France, 2015/09/01.
  • C. Shi, Y. Kajikawa, ``Fast Evaluation of Preprocessing Methods of the Parametric Array Loudspeaker,’’ 12th Western Pacific Acoustics Conference (WESPAC2015), Singapore, pp. 369-372, 2015/12/07.
  • Y. Hatano, C. Shi, S. Kinoshita, Y. Kajikawa, ``A Study on Compensating for the Distor-tion of the Parametric Array Loudspeaker with Changing Nonlinearity,’’ 12th Western Pacific Acoustics Conference (WESPAC2015), Singapore, pp. 334-337, 2015/12/08.
  • M. Nakamura, Y. Kajikawa, T. Miyakura, ``Effect of the Narrow Acoustic Structure to the Vibrations in Micro Speaker,’’ 12th Western Pacific Acoustics Conference (WESPAC2015), Singapore, pp. 151-155, 2015/12/09.
  • H. Takimoto, Y. Kajikawa, T. Miyakura, ``An Automatic Acoustic Design Method for Compact Acoustics Systems Based on the Acoustic Finite Difference Time Domain and Genetic Algorithm,’’ 12th Western Pacific Acoustics Conference (WESPAC2015), Singapore, pp. 142-147, 2015/12/09.
  • Y. Hatano, C. Shi, S. Kinoshita, Y. Kajikawa, ``Linearization of the Parametric Array Loudspeaker upon Varying Input Amplitudes,’’ Asia-Pacific Signal and Information Processing Association 2015 Annual Summit and Conference (APSIPA ASC 2015), Hong Kong, pp. 515-519, 2015/12/17.
  • N. Ishibushi, Y. Kajikawa, S. Miyoshi, ``Analysis of the FXLMS Algorithm with Norm-Constant Time-Varying Primary Path,’’ Asia-Pacific Signal and Information Pro-cessing Association 2015 Annual Summit and Conference (APSIPA ASC 2015), Hong Kong, pp. 165-168, 2015/12/18.
  • S. Kinoshita, Y. Kajikawa, ``Multi-channel Feedforward ANC System Combined with Noise Source Separation,’’ Asia-Pacific Signal and Information Processing Association 2015 Annual Summit and Conference (APSIPA ASC 2015), Hong Kong, pp. 379-382, 2015/12/19.

2014

  • K. Iwai, Y. Kajikawa, ``Nonlinear Distortion Reduction for Electrodynamic Loudspeaker Using Nonlinear Filtering,’’ 22nd European Signal Processing Conference (EUSIPCO2014), Lisbon, Portugal, 2014/09/04.
  • K. Tanaka, C. Shi, Y. Kajikawa, ``Study on Active Noise Control System Using Parametric Array Loudspeakers,’’ Forum Acusticum 2014, Krakow, Poland, 2014/09/09.
  • T. Tanada, Y. Kajikawa, ``Study on Acoustic FDTD Analysis for Compact Acoustic Systems,’’ Forum Acusticum 2014, Krakow, Poland, 2014/09/11.
  • S. Hase, Y. Kajikawa, L. Liu, S. M. Kuo, ``Noise Source Localization for Active Noise Control,’’ 2014 International Workshop on Smart Info-Media Systems in Asia (SISA2014), Ho Chi Minh City, Vietnam, 2014/10/09.
  • Y. Hatano, C. Shi, Y. Kajikawa, ``A Study on Linearization of Nonlinear Distortions in Parametric Array Loudspeakers,’’ 2014 International Workshop on Smart Info-Media Systems in Asia (SISA2014), Ho Chi Minh City, Vietnam, 2014/10/09.
  • Y. Kajikawa, ``Integration of Active Noise Control and Other Acoustic Signal Processing Techniques,’’ 2014 IEEE Asia Pacific Conference on Circuits and Systems (APCCAS2014), Okinawa, Japan, 2014/11/19.
  • K. Tanaka, C. Shi, Y. Kajikawa, ``Multi-channel Active Noise Control Using Parametric Array Loudspeakers,’’ Proc. of Asia-Pacific Signal and Information Processing Association 2014 Annual Summit and Conference (APSIPA ASC 2014), Siem Reap, Cambodia, 2014/12/11.
  • N. Egawa, Y. Kajikawa, S. Miyoshi, ``Statistical-mechanical Analysis of the FXLMS Algorithm with Time-Varying Primary Path,’’ Proc. of Asia-Pacific Signal and Information Processing Association 2014 Annual Summit and Conference (APSIPA ASC 2014), Siem Reap, Cambodia, 2014/12/11.
  • Q. Shi, Y. Kajikawa, ``Improved Robustness of Biometric Authentication System Using Feature of Utterance,’’ Proc. of Asia-Pacific Signal and Information Processing Association 2014 Annual Summit and Conference (APSIPA ASC 2014), Siem Reap, Cambodia, 2014/12/11.
  • C. Shi, Y. Kajikawa, ``A Comparative Study of Preprocessing Methods in the Parametric Loudspeaker,’’ Proc. of Asia-Pacific Signal and Information Processing Association 2014 Annual Summit and Conference (APSIPA ASC 2014), Siem Reap, Cambodia, 2014/12/11.

2013

  • S. Miyoshi, Y. Kajikawa, ``Statistical-Mechanical Analysis of the FXLMS Algorithm with Nonwhite Reference Signals,’’ Proc. of 2013 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP2013), Vancouver, Canada, 2013/05/28.
  • M. Niedzwiecki, M. Meller, Y. Kajikawa, D. Lukwinski, ``Estimation of Nonstationary Harmonic Signals and Its Application to Active Control of MRI Noise,’’ Proc. of 2013 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP2013), Vancouver, Canada, 2013/05/28.
  • N. Miyazaki, Y. Kajikawa, ``Adaptive Feedback ANC System Using Virtual Micro-phones,’’ Proc. of 2013 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP2013), Vancouver, Canada, 2013/05/28.
  • N. Uesako, Y. Kajikawa, ``Influence of Nonlinear Parameters in Mirror Filter to Compen-sation Performance of Nonlinear Distortions,’’ Proc. of 21st International Congress on Acoustics (ICA2013), Montreal, Canada, 2013/06/03.
  • K. Sugihara, M. Nakamura, Y. Kajikawa, Y. Nomura, ``Examination of Acoustic Mecha-nism for Compact Acoustic Reproduction Systems,’’ Proc. of 21st International Congress on Acoustics (ICA2013), Montreal, Canada, 2013/06/04.
  • N. Miyazaki, Y. Kajikawa, ``Adaptive Feedback Active Noise Control with Virtual Sens-ing,’’ Proc. of 20th International Congress on Sound and Vibration (ICSV20), Bangkok, Thailand, 2013/07/09.
  • Y. Kajikawa, W-S. Gan, S. M. Kuo, ``Recent Applications and Challenges on Active Noise Control,’’ Proc. of 8th International Symposium on Image and Signal Processing and Analysis (ISPA 2013), Trieste, Italy, 2013/09/05.
  • S. Miyoshi, Y. Kajikawa, ``A Theory of the FXLMS Algorithm Based on Statisti-cal-Mechanical Method,’’ Proc. of 8th International Symposium on Image and Signal Processing and Analysis (ISPA 2013), Trieste, Italy, 2013/09/05.
  • N. Miyazaki, Y. Kajikawa, ``Head-Mounted Active Noise Control System to Achieve Speech Communication,’’ Proc. of Asia-Pacific Signal and Information Processing Asso-ciation 2013 Annual Summit and Conference (APSIPA ASC 2013), Kaohsiung, Taiwan, 2013/10/30.
  • Q. Shi, Y. Kajikawa, ``Multimodal Person Authentication System Using Features of Ut-terance,’’ Proc. of Asia-Pacific Signal and Information Processing Association 2013 An-nual Summit and Conference (APSIPA ASC 2013), Kaohsiung, Taiwan, 2013/10/30.
  • N. Uesako, Y. Kajikawa, ``Relationship between the Nonlinear Distortions Compensation Performance and Each Parameter of the Electro-dynamic Loudspeaker System,’’ Proc. of 9th International Conference on Information, Communications, and Signal Processing (ICICS 2013), Tainan, Taiwan, 2013/12/11.

2012

  • K. Iwai, Y. Kajikawa, "Third-order Nonlinear IIR Filter for Compensating Nonlinear Distortions of Loudspeaker System," Acoustics 2012, Hong Kong, China, CD-ROM (6pages), 2012/05/15.
  • N. Miyazaki, Y. Kajikawa, "Head-Mounted Active Noise Control System and Its Application to Reducing MRI Noise," Acoustics 2012, Hong Kong, China, CD-ROM (6pages),
  • S. Miyoshi,Y. Kajikawa, "Theoretical Discussion of the Filtered-X LMS Algorithm Based on Statistical Mechanical Analysis," IEEE Statistical Signal Processing Workshop (SSP2012), Ann Arbor, USA, pp. 341-344, 2012/08/05.
  • K. Iwai, Y. Kajikawa, "Linearization of Dynamic Loudspeaker System Using Third-Order Nonlinear IIR Filter," 20th European Signal Processing Conference (EUSIPCO2012), Bucharest, Romania, pp. 1970-1974, 2012/08/27.
  • R. Kishi, Y. Kajikawa, "A Study on Parallel Cascade Structure for 2nd-order Volterra Kernel," 2012 International Workshop on Smart Info-Media System in Asia (SISA2012), Bangkok, Thailand, pp. 61-65, 2012/09/06.
  • T. Nishino, Y. Kajikawa, M. Muneyasu, "Multimodal Person Authentication System Using Features of Utterance," 2012 IEEE International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS 2012), New Taipei City, Taiwan, pp. 43-47, 2012/11/04.
  • S. Kono, Y. Kajikawa, "Improvement in Transmission Characteristics in Acoustic OFDM with Adaptive Microphone Array," 2012 IEEE International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS 2012), New Taipei City, Taiwan, pp. 504-508, 2012/11/04.
  • S. Okuro, Y. Kajikawa, "Reproduction of Varied Sound Image Localization for Real Source in Stereo Audio System," Proc. of Asia-Pacific Signal and Information Processing Association 2010 Annual Summit and Conference (APSIPA ASC 2012), Hollywood, USA, CD-ROM (4pages), 2012/12/03.
  • K. Iwai, Y. Kajikawa, "Nonlinear Signal Processing for Compensating Nonlinear Distortion of Loudspeakers," Proc. of Asia-Pacific Signal and Information Processing Association 2010 Annual Summit and Conference (APSIPA ASC 2012), Hollywood, USA, CD-ROM (6pages), 2012/12/03.
  • Y. Kajikawa, W.-S. Gan, S. M. Kuo, "[Plenary Presentation] Recent Advances on Active Noise Control: Open Issues and Innovative Applications," Asia-Pacific Signal and Information Processing Association 2010 Annual Summit and Conference (APSIPA ASC 2012), Hollywood, USA, 2012/12/03.

2011

  • Y. Kajikawa, "Linearization Ability Evaluation of Nonlinear Filters Employing Dynamic Distortion Measurement", Proc. of 2011 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP2011), Prague, Czech Republic, pp. 409-412, 2011/05/22.
  • K. Iwai, Y. Kajikawa, "Parameter Estimation Method for Closed-box Loudspeaker System", Forum Acusticum 2011, Aalborg, Denmark, pp. 2577-2582, 2011/06/27.
  • D. Kawai, Y. Kajikawa, Y. Nomura, T. Miyakura, "Acoustic FDTD Analysis Considering Viscous and Advective Effects", Forum Acusticum 2011, Aalborg, Denmark, pp. 2583-2587, 2011/06/27.
  • M. Meller, H. Tetsu, Y. Kajikawa, M. Niedzwiecki, "Semi-adaptive Feedback Active Control of MRI Noise", Inter-noise 2011, Osaka, Japan, 2011/09/06.
  • H. Kobayashi, Y. Kajikawa, "Robust Feedback Active Noise Control Using Linear Prediction Filter", Inter-noise 2011, Osaka, Japan, 2011/09/06.
  • Y. Mishima, Y. Kajikawa, "Automatic Parameter Adjustment Method for Audio Equalizer Employing Interactive Genetic Algorithm", 2011 International Workshop on Smart Info-Media Systems in Asia (SISA 2011), Nagasaki, Japan, pp. 116-119, 2011/10/31.
  • S. Okuno, Y. Kajikawa, "Modified-Error Filtered-x Algorithm Employing Linear Prediction Filter", 2011 International Workshop on Smart Info-Media Systems in Asia (SISA 2011), Nagasaki, Japan, pp. 124-129, 2011/10/31.
  • M. Tamura, Y. Kajikawa, "Method of Improving Transmission Characteristic While Maintaining Sound Quality for Use in Acoustic OFDM", 2011 International Workshop on Smart Info-Media Systems in Asia (SISA 2011), Nagasaki, Japan, pp. 194-199, 2011/10/31.
  • A. Sayo, Y. Kajikawa, M. Muneyasu, "Biometrics Authentication Method Using Lip Motion in Utterance", Proc. of 8th International Conference on Information, Communications, and Signal Processing (ICICS2011), Singapore, CD-ROM, 2011/12/13.
  • Y. Kajikawa, "[Invited Paper] Feedback Active Noise Control System and Its Application to MRI Noise", Proc. of 8th International Conference on Information, Communications, and Signal Processing (ICICS2011), Singapore, CD-ROM, 2011/12/13.

2010

  • Y. Kajikawa, R. Hirayama, "Feedback Active Noise Control System Combining Linear Prediction Filter", Proc. of 18th European Signal Processing Conference (EUSIPCO2010), Aalborg, Denmark, pp. 31-35, 2010/08/23.
  • M. Nakamura, Y.Kajikawa, Y. Nomura, T. Miyakura, "A Study on Acoustic Theoretical Formulae for Compact Acoustic Reproduction Systems", Proc. of the 10th International Congress on Acoustics (ICA2010), Sydney, Australia, 2010/08/23.
  • M. Nishihara, Y. Kajikawa, "Sound Quality and Transmission Characteristic Improvement for Acoustic OFDM", Proc. of the 2010 International Symposium on Communications and Information Technologies (ISCIT2010), Tokyo, Japan, pp. 158-161, 2010/10/26.
  • K. Iwai, Y. Kajikawa, "Nonlinear IIR Filter Considering Nonlinearity of Self-Inductance of Loudspeaker Systems", Proc. of the 2010 International Symposium on Communica-tions and Information Technologies (ISCIT2010), Tokyo, Japan, pp. 317-320, 2010/10/26.
  • H. Urakami, Y. Kajikawa, "A Double-Talk-Detector Using Sound and Image Informa-tion", Proc. of the 2010 International Symposium on Communications and Information Technologies (ISCIT2010), Tokyo, Japan, pp. 447-450, 2010/10/26.
  • I. Miya, Y. Kajikawa, "Base Station Layout Support System for Indoor Visible Light Communication", Proc. of the 2010 International Symposium on Communications and In-formation Technologies (ISCIT2010), Tokyo, Japan, pp. 661-664, 2010/10/26.
  • M. Kumamoto, Y. Kajikawa, T. Tani, Y. Kurumi, "Active Noise Control System for MR Noise", Proc. of Asia-Pacific Signal and Information Processing Association 2010 Annual Summit and Conference (APSIPA2010), Biopolis, Singapore, pp. 543-548, 2010/12/14.
  • M. Gotoda, Y. Kajikawa, "Low Computational Complexity Realization for Volterra Fil-ters", Proc. of Asia-Pacific Signal and Information Processing Association 2010 Annual Summit and Conference (APSIPA2010), Biopolis, Singapore, pp. 719-732, 2010/12/14.

2009

  • M. Kida, R. Hirayama, Y. Kajikawa, T. Tani, Y. Kurumi, "Head-Mounted Active Noise Control System for MR Noise", Proc. of 2009 IEEE International Conference on Acous-tics, Speech, and Signal Processing (ICASSP2009), Taipei, Taiwan, pp. 245-248, 2009/04/19.
  • S. Simizu, Y. Kajikawa, "A Sound Quality Customization System Using Paired Compari-son", Proc. of 17th European Signal Processing Conference (EUSIPCO2009), Glasgow, Scotland, pp. 185-188, 2009/08/25.
  • Y. Nobe, Y. Kajikawa, "Sound Field Reproduction System Tracking Environmental Variations with Deconvolution", Proc. of Asia-Pacific Signal and Information Processing Association 2009 Annual Summit and Conference (APSIPA2009), Sapporo, Japan, pp. 226-229, 2009/10/05.
  • R. Hirayama, Y. Kajikawa, "Stability Improvement of Feedback Active Noise Control System Using Linear Prediction", Proc. of Asia-Pacific Signal and Information Processing Association 2009 Annual Summit and Conference (APSIPA2009), Sapporo, Japan, pp. 230-233, 2009/10/05.
  • D. Sasaki, Y. Kajikawa, "A Novel Face Authentication Method Using Trajectory Fea-tures", Proc. of 2009 International Workshop on Smart Info-Media Systems in Asia (SISA2009), Osaka, Japan, pp. 181-186, 2009/10/23.
  • M. Kumamoto, M, Kida, R. Hirayama, Y. Kajikawa, T. Tani, Y. Kurumi, "An Active Noise Control System Using DXHS Algorithm for MR Noise", Proc. of 2009 Interna-tional Symposium on Intelligent Signal Processing and Communication Systems (ISPACS2009), Kanazawa, Japan, pp. 69-72, 2009/12/07.

2008

  • Y. Kajikawa, "Subband Parallel Cascade Volterra Filter for Linearization of Loudspeaker Systems", Proc. of European Signal Processing Conference (EUSIPCO2008), Lausanne, Switzerland, 2008/08/25
  • M. Kida, R. Hirayama, Y. Kajikawa, T. Tani, Y. Kurumi, "An Active Noise Control Sys-tem for MR Noise Implementation of an ANC System by Digital Signal Processor", Proc. of 9th International Conference on Signal Processing (ICSP2008), Beijing, China, pp. 2689-2692, 2008/10/26.
  • R. Hirayama, M. Kida, Y. Kajikawa, T. Tani, Y. Kurumi, "An Active Noise Control Sys-tem for MR Noise: A Study on an Available ANC System in Magnetic Field", Proc. of 9th International Conference on Signal Processing (ICSP2008), Beijing, China, pp. 2693-2696, 2008/10/26.
  • S. Kitagawa, Y. Kajikawa, "Dynamic Distortion Measurement for Linearization of Loud-speaker Systems", Proc. of 2008 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS2008), Bangkok, Thailand, 2009/02/08.

2007

  • S. Ohta, Y. Kajikawa, and Y. Nomura, "Acoustic Echo Cancellation Using Sub-Adaptive Filter", Proc. of 2007 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP2007), Hawaii, U.S.A., Vol. 1, pp. 85-88, 2007/04/15
  • Y. Nagase, S. Tsujikawa, Y. Kajikawa, and Y. Nomura, "A Method for Analyzing Compact Acoustic Reproduction Systems through Acoustic Equivalent Circuit", Proc. of 19th International Congress on Acoustics (ICA2007), Madrid, Spain, 2007/09/04

2006

  • Y. Tokoro, Y. Kajikawa, and Y. Nomura, "Improvement of Cancellation Performance for ANC System Using the Simultaneous Perturbation Method", Proc. of 2006 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP2006), Toulouse, France, vol. V, pp. 297-300, 2006/05/14
  • K. Tsukamoto, Y. Kajikawa, and Y. Nomura, "Sound Reproduction System with Simultaneous Perturbation Method", Proc. of XIV European Signal Processing Conference (EUSIPCO 2006), Florence, Italy, 2006/09/04
  • Y. Kajikawa, "[Invited Paper] Multichannel Active Noise Control System without Secondary Path Models Using the Simultaneous Perturbation Algorithm", 4th Joint Meeting of the Acoustical Society of America and the Acoustical Society of Japan, Hawaii, U.S.A., 4aSP4, 2006/11/28
  • H. Furuhashi, Y. Kajikawa, and Y. Nomura, "Realization of Nonlinear Acoustic Echo Cancellation by Subband Parallel Cascade Volterra Filter", Proc. of 2006 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS2006), Yonago, Japan, 2006/12/12
  • S. Ohta, Y. Kajikawa, and Y. Nomura, "Acoustic Echo Cancellation Using Sub-Adaptive Filter", Proc. of 2006 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS2006), Yonago, Japan, 2006/12/12

2005

  • Y. Kajikawa and Y. Nomura, "Multi-Channel Active Noise Control with Freely Movable Quiet Zone", Proc. of the Eighth International Symposium on Signal Processing and Its Applications (ISSPA2005), Sydney, Australia, Vol. 2, pp. 767-770, 2005/08/28
  • J. Sato, Y. Kajikawa, and Y. Nomura, "A Study on Downlink Beamforming Using Block Weight in TDD/MC-CDMA", Proc. of 2005 International Symposium on Intelligent Sig-nal Processing and Communication Systems (ISPACS2005), HongKong, China, pp. 497-500, 2005/12/13

2004

  • M. Kajiwara, Y. Kajikawa, and Y. Nomura, "A Design of Mobile Phones Using Design Support Software for Compact Acoustic Systems", Proc. of International Congress on Acoustics (ICA2004), Kyoto, Japan, Mo.P2.21, 2004/04/04
  • M. Ozawa, Y. Kajikawa, and Y. Nomura, "An Image Transmission System in MC-DS-CDMA with Weight Control", Proc. of 2004 IEEE International Conference on Communications (ICC2004), Paris, France, Vol. 5, pp. 2507-2510, 2004/06/20
  • Y. Kajikawa, "Multi-Channel Active Noise Control without Secondary Path Models", Proc. of IFAC Workshop on Adaptation and Learning in Control and Signal Processing (ALCOSP2004), Yokohama, Japan, pp. 339-344, 2004/08/30
  • T. Ninagawa, Y. Kajikawa, and Y. Nomura, "Multi-Channel Active Noise Control System Using the Perturbation Method with Correlation Removal Filter", Proc. of XII European Signal Processing Conference (EUSIPCO 2004), Vienna, Austria, pp. 921-924, 2004/09/06
  • Y. Inoue, Y. Kajikawa, and Y. Nomura, "Novel Motion-JPEG2000 Video Transmission System over CDMA Environment", Proc. of International Symposium on Communications and Information Technologies 2004 (ISCIT 2004), Sapporo, Japan, Vol. 1, pp. 265-268, 2004/10/26
  • Y. Kajikawa and Y. Nomura, "Multi-Channel Active Noise Control with Freely Movable Error Microphones", Proc. of 2005 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP2005), Philadelphia, U.S.A., Vol. 3, pp. 149-152, 2005/03/18
  • Y. Nomura and Y. Kajikawa, "Linearization of Loudspeaker Systems Using MINT and Volterra Filters", Proc. of 2005 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP2005), Philadelphia, U.S.A., Vol. 4, pp. 457-460, 2005/03/18

2003

  • Y. Kajikawa and Y. Nomura, "Active Noise Control without a Secondary Path Model by Using a Frequency-Domain Simultaneous Perturbation Method with Variable Perturbation", Proc. of the 2003 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP2003), Hong Kong, 2003/04/06
  • T. Ainoya, T. Mori, Y. Kajikawa, and Y. Nomura, "Active Noise Control Using the Perturbation Method - Verification in Actual Multi-Channel System -", Proc. of Eighth International Workshop on Acoustic Echo and Noise Control (IWAENC2003), Kyoto, Japan, pp. 175-178, 2003/09/08
  • M. Tsuchimoto, Y. Kajikawa, and Y. Nomura, "Novel Equalization Technique for DS-CDMA System with Adaptive Antenna Array", Proc. of 2003 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS2003), Awaji Island, Japan, pp. 291-296, 2003/12/07
  • T. Ainoya, T. Mori, Y. Kajikawa, and Y. Nomura, "Multi-channel Active Noise Control Using the Perturbation Method", Proc. of 2003 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS2003), Awaji Island, Japan, pp. 702-707, 2003/12/07

2002

  • Y. Kajikawa and Y. Nomura, "Linearization Technique for Stereophonic Reproduction Systems with Nonlinearity", Proc. of XI European Signal Processing Conference (EUSIPCO 2002), Toulouse, France, Vol. 1, pp. 321-324, 2002/09/03
  • T. Mori, Y. Kajikawa, and Y. Nomura, "Active Noise Control Systems Using the Frequency Domain Time Difference Simultaneous Perturbation Method", Proc. of 2002 IEEE International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS2002), Kaohsiung, Taiwan, pp. 197-201, 2002/11/21
  • J. Hamada, Y. Kajikawa, and Y. Nomura, "Development of a Software Tool for Eliminating Nonlinear Distortion", Proc. of 2002 IEEE International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS2002), Kaohsiung, Taiwan, pp. 277-281, 2002/11/21

2001

  • Y. Kajikawa, and Y. Nomura, "Frequency Domain Active Noise Control System Using Optimal Step-Size Parameters," Proc. of the 2001 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP2001), Utah, U.S.A., Vol. 5, pp. 3217-3220, 2001/05/07
  • S. Kinoshita, Y. Kajikawa, and Y. Nomura, "Volterra Filters Using Multirate Signal Processing and Their Application to Loudspeaker Systems," Proc. of the 2001 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP2001), Utah, U.S.A., Vol. 6, pp. 3497-3500, 2001/05/07
  • S. Kinoshita, Y. Kajikawa, and Y. Nomura, "Subband Adaptive Volterra Filter and Its Application to Identification of Loudspeaker Systems," Proc. of the 2001 IEEE-EURASIP Nonlinear Signal and Image Processing Workshop, Maryland, U.S.A., 2001/06/03
  • M. Tsujikawa, Y. Kajikawa, and Y. Nomura, "Summational Complex NLMS Algorithm for Frequency-Domain Adaptive Volterra Filters," Proc. of the 2001 IEEE-EURASIP Nonlinear Signal and Image Processing Workshop, Maryland, U.S.A., 2001/06/03
  • Y. Nomura, T. Nakatani, and Y. Kajikawa, "An Automatic Design Technique Using Genetic Algorithm for the Acoustic Component of Mobile Phones," Proc. of the 17th Inter-national Congress on Acoustics, Rome, Italy, 2001/09/03

2000

  • Y. Kajikawa, J. Yabuki, and Y. Nomura, "Stable Condition Considering Modeling Error in the Filtered-x LMS Algorithm," Proc. of the 2000 IEEE International Symposium on Circuits and Systems (ISCAS2000), Geneva, Switzerland, Vol. 3, pp. 642-645, 2000/05/28
  • Y. Kajikawa and Y. Nomura, "Active Noise Control System without Secondary Path Model," Proc. of the 2000 IEEE International Symposium on Circuits and Systems (ISCAS2000), Geneva, Switzerland, Vol. 4, pp. 349-352, 2000/05/28
  • M. Tsujikawa, T. Shiozaki, Y. Kajikawa, and Y. Nomura, "Identification and Elimination of Second-order Nonlinear Distortion of Loudspeaker Systems Using Volterra Filter," Proc. of the 2000 IEEE International Symposium on Circuits and Systems (ISCAS2000), Geneva, Switzerland, Vol. 5, pp. 249-252, 2000/05/28
  • Y. Hashimoto, Y. Kajikawa, and Y. Nomura, "Directional Difference-Based Impulse Detector and Median Filter," Proc. of X European Signal Processing Conference (EUSIPCO2000), Tampere, Finland, TAP2-2, 2000/09/04
  • Y. Kajikawa and Y. Nomura, "Frequency Domain Active Noise Control System without Secondary Path Model," Proc. of X European Signal Processing Conference (EUSIPCO2000), Tampere, Finland, TPP3-2, 2000/09/04
  • M. Tsujikawa, T. Shiozaki, Y. Kajikawa, and Y. Nomura, "Identification and Elimination of Second-order Nonlinear Distortion of Loudspeaker Systems Using Digital Volterra Filter," Proc. of X European Signal Processing Conference (EUSIPCO2000), Tampere, Finland, FPP1-4, 2000/09/04
  • Y. Hashimoto, Y. Kajikawa, and Y. Nomura, "High Performance Impulse Detectors and Its Application to Progressive Switching Scheme-Based Filters," Proc. of the International Workshop on Signal Processing Applications and Technology, Tokyo, Japan, pp. 77-80, 2000/10/20
  • M. Tsujikawa, Y. Kajikawa, and Y. Nomura, "Identification of Third-order Volterra Kernels by Multi-sinusoidal Waves and Its Application to Loudspeaker Systems," Proc. of the International Workshop on Signal Processing Applications and Technology, Tokyo, Japan, pp. 147-150, 2000/10/20

1998

  • Y. Kajikawa and Y. Nomura, "The Summational Projection Algorithm for the Adaptive Volterra Filter", Proc. of IX European Signal Processing Conference (EUSIPCO'98), Rhodes, Greece, Vol. 2, pp. 745-748, 1998/09/08

1997

  • Y. Kajikawa and Y. Nomura, "A Design Method of a Nonlinear Inverse System by the Adaptive Volterra Filter", Proc. of 1997 IEEE Workshop on Nonlinear Signal and Image Processing, Michigan, U.S.A., TP3-3, 1997/09/08
  • Y. Nomura and Y. Kajikawa, "An Elimination Method of the Nonlinear Distortion in Fre-quency Domain by the Volterra Filter", Proc. of 1997 IEEE Workshop on Nonlinear Signal and Image Processing, Michigan, U.S.A., WP3-1, 1997/09/08
  • T. Sakamoto, Y. Kajikawa, and Y. Nomura, "A Construction of an Automatic Piano Playing System Wearing a Performer's Characteristic - The Generation of a Performer's Characteristic by Musical Sensibility Space - ", Proc. of 1997 Japan-China Joint Meeting on Musical Acoustics, Tokyo, Japan, D-5, pp. 121-124, 1997/11/01
  • M. Hata, Y. Kajikawa, and Y. Nomura, "A Construction of an Automatic Piano Playing System Wearing a Player's Characteristic by Neural Networks ", Proc. of 1997 Japan-China Joint Meeting on Musical Acoustics, Tokyo, Japan, D-6, pp. 125-128, 1997/11/01

1995

  • Y. Kajikawa, Y. Nomura, J. Ohga, "An Automatic Design of Telephone-Handset Sup-pressing an Effect of Leak. ~A Design by Nonlinear Optimization Technique.~", 15th International Congress on Acoustics, Trondheim, Norway, Vol.4, pp.213-216, 1995/06/26
  • Y. Nomura, Y. Kajikawa, J. Ohga, "An Estimation of Acoustic Parameters of Telephone-Handset by Monte Carlo Method.", 15th International Congress on Acoustics, Trondheim, Norway, Vol.4, pp.249-252, 1995/06/26
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