Yusuke KozawaAssociate Professor

■Researcher basic information

Organization

  • College of Engineering Department of Computer and Information Sciences
  • Graduate School of Science and Engineering（Master's Program） Major in Computer and Information Sciences
  • Graduate School of Science and Engineerin（Doctoral Program） Major in Society's Infrastructure Systems Science
  • Faculty of Applied Science and Engineering Domain of Computer and Information Sciences

Research Areas

  • Informatics, Information networks
  • Manufacturing technology (mechanical, electrical/electronic, chemical engineering), Communication and network engineering, Communication/Network engineering

Research Keyword

  • Visible Light Communication
  • Optical wireless communication systems
  • Wireless communication systems
  • Digital communications

SDGs related to your own research

Degree

  • 2009年03月　修士（工学）（茨城大学）
  • 2012年03月　博士（工学）（茨城大学）

Educational Background

  • 01 Apr. 2009 - 31 Mar. 2012, Ibaraki University, Graduate School of Science and Engineering, Major in Information and Systems Sciences
  • Apr. 2009 - Mar. 2012, Ibaraki University, Graduate School of Science and Engineering, Major in Information and Systems Sciences
  • 01 Apr. 2007 - 31 Mar. 2009, Ibaraki University, Graduate School of Science and Engineering, Major in Computer and Information Sciences
  • Apr. 2007 - Mar. 2009, Ibaraki University, Graduate School of Science and Engineering, Major in Computer and Information Sciences
  • Apr. 2003 - Mar. 2007, Ibaraki University, College of Engineering, Department of Computer and Information Science

Career

  • Apr. 2024 - Present, Ibaraki University, 学術研究院 応用理工学野 情報科学領域, Associate Professor (full-time)
  • Apr. 2022 - Mar. 2024, Ibaraki University Graduate School of Science and Engineering (Engineering) Department of Computer and Information Sciences, 理工学研究科（工学野）情報科学領域, Lecturer(full-time)
  • Feb. 2017 - Mar. 2022, Ibaraki University Graduate School of Science and Engineering (Engineering) Department of Computer and Information Sciences, 理工学研究科（工学野）情報科学領域, Assistant professor(Tenure-Track)
  • Apr. 2017 - Mar. 2021, 東京理科大学研究推進機構, 総合研究員インテリジェントシステム研究部門, 客員研究員
  • Feb. 2017, Ibaraki University Graduate School of Science and Engineering (Engineering) Department of Computer and Information Sciences, 理工学研究科（工学野）情報科学領域, Assistant professor
  • Apr. 2012 - Jan. 2017, Tokyo University of Science, Department of Electrical Engineering, Faculty of Science & Technology, Assistant Professor

Member History

  • Oct. 2019 - Present, 幹事, Japan Photonics Council VLCA
  • Jun. 2019 - Present, IEICEワイドバンドシステム研究専門委員会委員, IEICE
  • Jun. 2018 - Present, Reviewer for IEEE Transactions on Communications, IEEE
  • Oct. 2016 - Present, Reviewer for IET Optoelectronics, IET
  • Jun. 2022 - Jun. 2026, IEICE英文論文誌A編集委員会 英文論文誌編集委員, IEICE
  • Jun. 2022 - Jun. 2026, IEICE和文論文誌A編集委員会 和文論文誌編集委員, IEICE
  • Jun. 2024 - Mar. 2025, General Secretary for RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing 2025 (NCSP2025), Research Institute of Signal Processing
  • Jan. 2023 - Dec. 2024, Chair for IEEE Japan Council Student Activities Committee, IEEE
  • Jun. 2022 - Jun. 2023, IEICEソサイエティ論文誌編集委員会 査読委員, IEICE
  • Jan. 2021 - Dec. 2022, Vice Chair for IEEE Japan Council Student Activities Committee, IEEE
  • Jun. 2020 - Dec. 2020, TPC for 9th IEEE GLOBECOM Workshop on Optical Wireless Communications (OWC20), IEEE
  • Jan. 2019 - Dec. 2020, Secretary for IEEE Japan Council Student Activities Committee, IEEE
  • Jun. 2018 - Jan. 2020, Guest Editor for the IEICE transactions on fundamentals special section on Wideband Systems, IEICE
  • 01 Sep. 2019 - 18 Dec. 2019, TPC member for 1st Workshop on Optical Wireless Communication for Smart City (1st OWC2), IEICE
  • Sep. 2019 - Dec. 2019, TPC member for 1st Workshop on Optical Wireless Communication for Smart City,(1st OWC2), IEICE
  • May 2017 - May 2019, IEICEワイドバンドシステム研究専門委員会幹事, IEICE
  • 01 Jun. 2018 - 07 Mar. 2019, Publication chair for RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing 2019 (NCSP2019), Research Institute of Signal Processing
  • Jun. 2018 - Mar. 2019, Publication chair for RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing 2019 (NCSP2019), Research Institute of Signal Processing
  • Feb. 2018 - Jan. 2019, Guest Editor for the IEICE transactions on fundamentals special section on Wideband Systems, IEICE
  • Jun. 2018 - Dec. 2018, Secretary for 8th IEEE workshop on Optical Wireless Communications (OWC18), IEEE
  • 01 Feb. 2017 - 16 Mar. 2018, Steering Committee for 2nd International Conference and Exhibition on Visible Light Communications 2018 (ICEVLC2018), Visible Light Communication Association
  • 01 Feb. 2017 - 16 Mar. 2018, TPC member for 2nd International Conference and Exhibition on Visible Light Communications 2018 (ICEVLC2018), Visible Light Communication Association
  • Feb. 2017 - Mar. 2018, Steering Committee for 2nd International Conference and Exhibition on Visible Light Communications 2018 (ICEVLC2018), Visible Light Communication Association
  • Feb. 2017 - Mar. 2018, TPC member for 2nd International Conference and Exhibition on Visible Light Communications 2018 (ICEVLC2018), Visible Light Communication Association
  • Jul. 2016 - Jun. 2017, 通信ソサイエティ英文論文誌 小特集号「Special Section on Visible Light Communications in Conjunction with Topics of ICEVLC」編集委員会, IEICE
  • Jun. 2013 - May 2017, IEICEワイドバンドシステム研究専門委員会幹事補佐, IEICE
  • Jan. 2015 - Dec. 2016, Vice Chair for IEEE Tokyo Affinity Group Young Professionals, IEEE Tokyo Affinity Group
  • Aug. 2015, Reviewer for IEEE Signal Processing Letter, IEEE
  • Aug. 2015, Reviewer for IEEE Transactions on Wireless Communications, IEEE
  • Jan. 2013 - Dec. 2014, Finance Chair for IEEE Tokyo Affinity Group Young Professionals, IEEE Tokyo Affinity Group
  • Jul. 2013 - Jun. 2014, IEICE学会誌編集委員会編集委員, IEICE

■Research activity information

Award

  • Sep. 2016, 基礎・境界ソサイエティ 貢献賞, IEICE
    Japan society
  • Oct. 2010, IEEE Information Theory Society Japan Chapter Travel Support Award, IEEE
    International society
  • May 2002, 学生会奨励賞, 電子情報通信学会東京支部
    Japan society

Paper

  • Intelligent Lighting System Incorporating Two Different Data Transmission Methods
    Tianhe Huang; Yusuke Kozawa; Hiromasa Habuchi, Institute of Electrical and Electronics Engineers (IEEE)
    IEEE Access, Mar. 2025, [Reviewed]
  • Channel Capacity Evaluation of Digital Color Shift Keying with Spatial Modulation Technique
    Naoki Ishitsuka; Yusuke Kozawa; Hiromasa Habuchi, Corresponding, Research Institute of Signal Processing, Japan
    Journal of Signal Processing, 01 Jul. 2024, [Reviewed]
  • Selective Multi-pulse Pulse Position Modulation for Lighting Constrained Visible Light Communications
    Yusuke Kozawa, Lead, IEEE
    2024 IEEE International Symposium on Circuits and Systems (ISCAS), 19 May 2024, [Reviewed]
  • Enhancement of Optimized CSK for USLIPT
    Honoka Yoshinaga; Yusuke Kozawa; Hiromasa Habuchi, Corresponding, IEEE
    GLOBECOM 2023 - 2023 IEEE Global Communications Conference, 04 Dec. 2023, [Reviewed]
  • （2，2）しきい値秘密分散法を用いる拡張VN-CodeSK照明光通信方式
    幡豆亮平、小澤佑介、羽渕裕真, IEICE
    電子情報通信学会論文誌 B, 01 Aug. 2023, [Reviewed]
  • Performance Evaluation of Variable xASK-CodeSK Scheme
    Yu Ichitsuka; Yusuke Kozawa; Hiromasa Habuchi, Research Institute of Signal Processing, Japan
    Journal of Signal Processing, 01 Jul. 2023, [Reviewed]
  • Theoretical analysis of underwater simultaneous light Information and power transfer using inverted N parallel code shift keying with power splitting　　　　　　　　　　　　　　　
    Masao Koshimoto; Yusuke Kozawa; Hiromasa Habuchi, Corresponding, IEEE
    Proceedings of IEEE International Symposium on Circuits and Systems 2023 (ISCAS 2023), 21 May 2023, [Reviewed]
  • Optimal FOV of Angular Diversity Receiver for Underwater Visible Light Communications　　　　　　　　　　　　　　　
    Keigo Matsunaga; Yusuke Kozawa; Hiromasa Habuchi, Corresponding, IEEE
    Proceedings of IEEE International Symposium on Circuits and Systems 2023 (ISCAS 2023), 21 May 2023, [Reviewed]
  • Enhanced xASK-CodeSK for SLIPT　　　　　　　　　　　　　　　
    Yu Ichitsuka; Yusuke Kozawa; Hiromasa Habuchi, RISP
    Proc. RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing (NCSP2023), 01 Mar. 2023, [Reviewed]
  • Comparison of Trilateration Method and Optical Figerprinting Method Based on OpticalWireless VN-CodeSK System　　　　　　　　　　　　　　　
    Yuta Ochiai; Daisuke Ogawa; Yusuke Kozawa; Hiromasa Habuchi, RISP
    Proc. RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing (NCSP2023), 01 Mar. 2023, [Reviewed]
  • Non-uniform Grid-based Optical Fingerprint Positioning on VN-CSK System　　　　　　　　　　　　　　　
    Daisuke Ogawa; Yuta Ochiai; Yusuke Kozawa; Hiromasa Habuchi, RISP
    Proc. RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing (NCSP2023), 01 Mar. 2023, [Reviewed]
  • A Study of PDs Arrangement for LED based Underwater Visible Light Communication with Angular Diversity Receiver in shallow water
    Keigo Matsunaga; Yusuke Kozawa; Hiromasa Habuchi, Corresponding, IEICE
    Proceedings of 2022 International Conference on Emerging Technologies for Communications (ICETC2022), 29 Nov. 2022, [Reviewed]
  • Influence of Reflected Light in Illumination-Light VN-CodeSK Based Positioning Systems　　　　　　　　　　　　　　　
    Yuta Ochiai; Daisuke Ogawa; Yusuke Kozawa; Hiromasa Habuchi, IEICE
    Proc. International Symposium on Information Theory and Its Applications (ISITA), 19 Oct. 2022, [Reviewed]
  • RGB-Based Secret Sharing Illumination-Light Communications With VN-CodeSK　　　　　　　　　　　　　　　
    Ryohei Hazu; Yusuke Kozawa; Hiromasa Habuchi
    Proc. IEEE 11th Global Conference on Consumer Electronics (GCCE), 18 Oct. 2022, [Reviewed]
  • Search-Area Partitioning Approach to Optical Fingerprint Positioning System　　　　　　　　　　　　　　　
    Daisuke Ogawa; Yuta Ochiai; Yusuke Kozawa; Hiromasa Habuchi
    Proc. IEEE 11th Global Conference on Consumer Electronics (GCCE), 18 Oct. 2022, [Reviewed]
  • Design of xASK-CodeSK System for Simultaneous Visible Light Wireless Information and Power Transfer　　　　　　　　　　　　　　　
    Yu Ichitsuka; Yusuke Kozawa; Hiromasa Habuchi
    Proc. IEEE 11th Global Conference on Consumer Electronics (GCCE), 18 Oct. 2022, [Reviewed]
  • Effects of Synchronous Timing Gap on Energy-Efficient MC-CDMA On-Demand WSNs Using Packet Combining Scheme
    Masanori Suetake; Gen Li; Hiromasa Habuchi; Yusuke Kozawa, RISP
    Journal of Signal Processing, 01 Jul. 2022, [Reviewed]
  • Recognition of 2D LEDs array pattern for underwater image sensor communication by R-CNN
    Takao Sawa; Yusuke Kozawa; Shinpei Goto; Tomoaki Takeuchi; Taro Shibagaki, IEEE
    Proceedings of 2021 24th International Symposium on Wireless Personal Multimedia Communications (WPMC), 07 Feb. 2022, [Reviewed]
  • Theoretical analysis of received optical intensity of underwater image sensor based visible light communications using RGB-LEDs
    Kazune Yokoo; Yusuke Kozawa; Takao Sawa, Corresponding, IEEE
    Proceedings of 2021 24th International Symposium on Wireless Personal Multimedia Communications (WPMC), 07 Feb. 2022, [Reviewed]
  • Visual Secret Sharing Based RGB Parallel Transmission System
    Ryohei Hazu; Yusuke Kozawa; Hiromasa Habuchi, IEEE
    Proceedings of 2021 24th International Symposium on Wireless Personal Multimedia Communications (WPMC), 07 Feb. 2022, [Reviewed]
  • Chlorophyll concentration-based CSK constellation point design for underwater SLIPT with priority on communication performance
    Takuma Kogo; Yusuke Kozawa; Hiromasa Habuchi, Corresponding, IEEE
    Proceedings of 2021 24th International Symposium on Wireless Personal Multimedia Communications (WPMC), 07 Feb. 2022, [Reviewed]
  • Theoretical analysis of selective variable rate multi-pulse pulse position modulation for visible light communications
    Tatsuhiko Iwase; Yusuke Kozawa; Hiromasa Habuchi, Corresponding, IEEE
    Proceedings of 2021 24th International Symposium on Wireless Personal Multimedia Communications (WPMC), 07 Feb. 2022, [Reviewed]
  • Chlorophyll concentration-based CSK constellation point optimization for Underwater SLIPT using Time Splitting receiver　　　　　　　　　　　　　　　
    Takuma Kogo; Yusuke Kozawa; Hiromasa Habuchi, Corresponding, IEEE
    Proceedings of IEEE Global Communications Conference Workshop on Optical Wireless Communications 2020, Dec. 2020, [Reviewed]
  • Theoretical Analysis of Illumination-Light VN-CSK Based Equal-Weight (2, 2) VSS with MPOMS Balancer
    Keisuke Manaka; Liyuan Chen; Hiromasa Habuchi; Yusuke Kozawa, Institute of Electrical and Electronics Engineers Inc.
    2020 IEEE 9th Global Conference on Consumer Electronics, GCCE 2020, 13 Oct. 2020
  • Advanced Turbo Code System with HPOS for FSO Strong Turbulence Channel
    Ran Sun; Hiromasa Habuchi; Yusuke Kozawa, RISP
    Journal of Signal Processing, Jul. 2020, [Reviewed]
  • Optimized CSK constellations for underwater SLIPT　　　　　　　　　　　　　　　
    Takuma Kogo; Yusuke Kozawa; Hiromasa Habuchi, Corresponding, RISP
    Proceedings of RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing 2020 (NCSP2020), 21 Feb. 2020, [Reviewed]
  • Enhancement of Optical Wireless Punctured Turbo Code System in Strong Turbulence Channel　　　　　　　　　　　　　　　
    Ran Sun; Hiromasa Habuchi; Yusuke Kozawa, RISP
    Proceedings of RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing 2020 (NCSP2020), 21 Feb. 2020, [Reviewed]
  • Optimization of Frame Synchronization System for Optical Wireless Hybrid PPM-OOK Frame Communication　　　　　　　　　　　　　　　
    Tomohiro Kiguchi; Ran Sun; Hiromasa Habuchi; Yusuke Kozawa, RISP
    RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing 2020 (NCSP2020), 21 Feb. 2020, [Reviewed]
  • Multiple Access Capability of Einarsson Code based Optical-Wireless Code Shift Keying System　　　　　　　　　　　　　　　
    Tomofumi Haruna; Hiromasa Habuchi; Yusuke Kozawa, RISP
    RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing 2020 (NCSP2020), 21 Feb. 2020, [Reviewed]
  • Performance Enhancement of Equal-Weight (2, 2) Visual Secret Sharing System with MPOMS on Illumination-Light VN-CSK Communication　　　　　　　　　　　　　　　
    Keisuke Manaka; Hiromasa Habuchi; Yusuke Kozawa, RISP
    RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing 2020 (NCSP2020), 21 Feb. 2020, [Reviewed]
  • Free Space Optical Turbo Coded Communication System with Hybrid PPM-OOK Signaling　　　　　　　　　　　　　　　
    Ran Sun; Hiromasa Habuchi; Yusuke Kozawa, IEICE
    IEICE transactions on fundamentals of electronics, communications and computer sciences, Jan. 2020, [Reviewed]
  • Theoretical Analysis of Equal-Weight (2, 2) VSS on VN-CSK Illumination Light Communication
    Keisuke Manaka; Liyuan Chen; Hiromasa Habuchi; Yusuke Kozawa, Institute of Electrical and Electronics Engineers Inc.
    2019 29th International Telecommunication Networks and Applications Conference, ITNAC 2019, 01 Nov. 2019
  • Frame Synchronization Performance of Optical-Wireless Hybrid BPPM-OOK System
    Tomohiro Kiguchi; Ran Sun; Hiromasa Habuchi; Yusuke Kozawa, Institute of Electrical and Electronics Engineers Inc.
    2019 29th International Telecommunication Networks and Applications Conference, ITNAC 2019, 01 Nov. 2019
  • Proposal of Frame Synchronization Method for Optical Turbo Coded System with Hybrid PPM-OOK Signaling
    Tomohiro Kiguchi; Ran Sun; Hiromasa Habuchi; Yusuke Kozawa, IEEE
    Proceedings of 2019 IEEE VTS Asia Pacific Wireless Communications Symposium (APWCS), Aug. 2019, [Reviewed]
  • Proposal of Equal-Weight (2, 2) Visual Secret Sharing Scheme on VN-CSK Illumination Light Communication
    Keisuke Manaka; Liyuan Chen; Hiromasa Habuchi; Yusuke Kozawa, IEEE
    Proceedings of 2019 IEEE VTS Asia Pacific Wireless Communications Symposium (APWCS), Aug. 2019, [Reviewed]
  • Theoretical Analysis of Frame Error Detecting Schemes for Optical-Wireless Advanced Framed-DOOK System
    Yuta Asano; Ran Sun; Hiromasa Habuchi; Yusuke Kozawa, RISP
    Journal of Signal Processing, Jul. 2019, [Reviewed]
  • Optical-Wireless VN-CSK Communication-Based Indoor Positioning System
    Hikari Iizuka; Ran Sun; Hiromasa Habuchi; Yusuke Kozawa, RISP
    Journal of Signal Processing, Jul. 2019, [Reviewed]
  • Inverse Pulse Position Modulation Scheme for Underwater Visible Light Simultaneous Wireless Information and Power Transfer　　　　　　　　　　　　　　　
    Yusuke Kozawa; Ryota Kimoto; Yohtaro Umeda, Lead
    The 1st Optical wireless and Fiber Power Transmission Conference (OWPT2019) in Optics and Photonics International Congress, Apr. 2019, [Reviewed]
  • Underwater Visible Light Simultaneous Wireless Information and Power Transfer using Inverse Pulse Position Modulation Scheme　　　　　　　　　　　　　　　
    Ryota Kimoto; Yusuke Kozawa; Yohtaro Umeda; Hiromasa Habuchi
    Proceedings of the RISP International Workshop on Nonlinear Circuits, Communication and Signal Processing, 05 Mar. 2019, [Reviewed]
  • High Accuracy Positioning System on Indoor Optical Wireless VN-CSK System　　　　　　　　　　　　　　　
    Hikari Iizuka; Ran Sun; Hiromasa Habuchi; Yusuke Kozawa
    Proceedings of the RISP International Workshop on Nonlinear Circuits, Communication and Signal Processing, 05 Mar. 2019, [Reviewed]
  • Effective Frame Error Detecting Scheme for Optical-Wireless Advanced Framed-DOOK System　　　　　　　　　　　　　　　
    Yuta Asano; Hiromasa Habuchi; Yusuke Kozawa
    Proceedings of the RISP International Workshop on Nonlinear Circuits, Communication and Signal Processing, 05 Mar. 2019, [Reviewed]
  • Channel capacity of hybrid dimmable MPPM for visible light communications　　　　　　　　　　　　　　　
    Takashi Ozaki; Yusuke Kozawa; Yohtaro Umeda, VDE Verlag GmbH
    SCC 2015 - 10th International ITG Conference on Systems, Communications and Coding, 2019
  • Theoretical Analysis on Bit Error Rate of Visible-Light Variable N-parallel Code-Shift-Keying　　　　　　　　　　　　　　　
    Keisuke Ohsawa; Hiromasa Habuchi; Yusuke Kozawa
    IEICE transactions on fundamentals of electronics, communications and computer sciences, Dec. 2018, [Reviewed]
  • Proposal of Optical Wireless Turbo Coded System with Hybrid PPM-OOK Signaling　　　　　　　　　　　　　　　
    Ran Sun ; Hiromasa Habuchi ; Yusuke Kozawa, IEEE
    Proceedings of IEEE 2018 12th International Conference on Signal Processing and Communication Systems (ICSPCS), Dec. 2018, [Reviewed]
  • Frame Error Detection Performance of Optical-Wireless Advanced Framed-DOOK System　　　　　　　　　　　　　　　
    Yuta Asano ; Hiromasa Habuchi ; Yusuke Kozawa, IEEE
    Proceedings of IEEE 2018 12th International Conference on Signal Processing and Communication Systems (ICSPCS), Dec. 2018, [Reviewed]
  • Enhanced On-demand WSN in terms of MC-CDMA with MPOMS　　　　　　　　　　　　　　　
    Yutaka Imaizumi; Hiromasa Habuchi; Yusuke Kozawa, IEEE
    Proceedings of IEEE International Symposium on Intelligent Signal Processing and Communication Systems, 28 Nov. 2018, [Reviewed]
  • Exact Bit Error Rate Analysis for Optical-Wireless Framed-DOOK System　　　　　　　　　　　　　　　
    Yuto Asano; Hiromasa Habuchi; and Yusuke Kozawa, IEEE
    Proceedings of IEEE 7th Global Conference of Consumer Electronics, 12 Oct. 2018, [Reviewed]
  • BER Performance Impaired by Transmission Time Offset Between Users in Optical Wireless CSK/ACDMA System Using DMPOMs　　　　　　　　　　　　　　　
    Takashi Tokunaga; Hiromasa Habuchi; Yusuke Kozawa; and Ran Sun, IEEE
    Proceedings of IEEE 7th Global Conference of Consumer Electronics, 12 Oct. 2018, [Reviewed]
  • Proposal of VN-CSK System having Positioning Function　　　　　　　　　　　　　　　
    Hikari Iiduka; Hiromasa Habuchi; and Yusuke Kozawa, IEEE
    Proceedings of IEEE Vehicular Technology Society Asia Pacific Wireless Communications Symposium, 22 Aug. 2018, [Reviewed]
  • Theoretical Analysis of Optical-Wireless Code Shift Keying System using Extended Einarsson Code　　　　　　　　　　　　　　　
    Tomofumi Haruna; Hiromasa Habuchi; and Yusuke Kozawa, IEEE
    Proceedings of IEEE Vehicular Technology Society Asia Pacific Wireless Communications Symposium, 22 Aug. 2018, [Reviewed]
  • Experimental Evaluation of Hybrid PWM/DPAM Dimming Control Method for Digital Color Shift Keying Using RGB-LED Array
    Yusuke Matsuda; Yusuke Kozawa; Yohtaro Umeda, Corresponding, 信号処理学会
    Journal of Signal Processing, 25 Jul. 2018, [Reviewed]
  • Design of Synchronization Signal Embedded Optical Wireless Differential OOK　　　　　　　　　　　　　　　
    Yuta Asano; Hiromasa Habuchi; Yusuke Kozawa, Visible Light Communications Association
    Proceedings of 2nd International Conference and Exhibition on Visible Light Communications, 16 Mar. 2018, [Reviewed]
  • Performance Evaluation of Hybrid VN-CSK/PAM for Lighting Constrained Visible Light Communications　　　　　　　　　　　　　　　
    Keisuke Osawa; Hiromasa Habuchi; Yusuke Kozawa
    Proceedings of the RISP International Workshop on Nonlinear Circuits, Communication and Signal Processing, 06 Mar. 2018, [Reviewed]
  • Error Correcting Codes in Underwater RGB-LED Parallel Communication: Turbo or LDPC?　　　　　　　　　　　　　　　
    San Sun; Hiromasa Habuchi; Yusuke Kozawa
    Proceedings of the RISP International Workshop on Nonlinear Circuits, Communication and Signal Processing, 06 Mar. 2018, [Reviewed]
  • A quadrature-modulation EPWM transmitter that uses sine wave carriers for i and Q channel with a 90° hybrid
    Tomoaki Morita; Ryo Sakai; Yohtaro Umeda; Yusuke Kozawa, Institute of Electrical and Electronics Engineers Inc.
    Asia-Pacific Microwave Conference Proceedings, APMC, 08 Jan. 2018, [Reviewed]
  • Hybrid PWM/DPAM Dimming Control for Digital Color Shift Keying Using RGB-LED Array
    Jumpei Okumura; Yusuke Kozawa; Yohtaro Umeda; Hiromasa Habuchi, Institute of Electrical and Electronics Engineers Inc.
    IEEE Journal on Selected Areas in Communications, 01 Jan. 2018, [Reviewed]
  • Improved synchronization scheme for indoor visible-light differential on-off keying
    Yuta Asano; Hiromasa Habuchi; Yusuke Kozawa, Institute of Electrical and Electronics Engineers Inc.
    2017 IEEE 6th Global Conference on Consumer Electronics, GCCE 2017, 19 Dec. 2017, [Reviewed]
  • Inverse pulse position modulation schemes for simultaneous visible light wireless information and power transfer
    Ryota Kimoto; Yusuke Kozawa; Yohtaro Umeda; Hiromasa Habuchi, Institute of Electrical and Electronics Engineers Inc.
    2017 27th International Telecommunication Networks and Applications Conference, ITNAC 2017, 15 Dec. 2017, [Reviewed]
  • SCDMA capability of high-density code-shift keying using dual MPOMs in optical-wireless channel
    Takashi Tokunaga; Hiromasa Habuchi; Yusuke Kozawa; Ran Sun, Institute of Electrical and Electronics Engineers Inc.
    2017 27th International Telecommunication Networks and Applications Conference, ITNAC 2017, 15 Dec. 2017, [Reviewed]
  • Proposal of optical wireless turbo coded APPM system
    Ran Sun; Hiromasa Habuchi; Yusuke Kozawa, Institute of Electrical and Electronics Engineers Inc.
    2017 27th International Telecommunication Networks and Applications Conference, ITNAC 2017, 15 Dec. 2017, [Reviewed]
  • A theoretical analysis of visible-light variable N-parallel code-shift-keying in LOS indoor environments
    Keisuke Osawa; Hiromasa Habuchi; Yusuke Kozawa, Institute of Electrical and Electronics Engineers Inc.
    2017 8th International Workshop on Signal Design and Its Applications in Communications, IWSDA 2017, 03 Nov. 2017, [Reviewed]
  • New two-layered pseudo-noise code for optical-wireless code-shift keying/SCDMA
    Takashi Tokunaga; Hiromasa Habuchi; Yusuke Kozawa, Institute of Electrical and Electronics Engineers Inc.
    2017 8th International Workshop on Signal Design and Its Applications in Communications, IWSDA 2017, 03 Nov. 2017, [Reviewed]
  • Impact of framed-DOOK optical wireless system using error correcting codes
    Ran Sun; Hiromasa Habuchi; Yusuke Kozawa, Institute of Electrical and Electronics Engineers Inc.
    2017 8th International Workshop on Signal Design and Its Applications in Communications, IWSDA 2017, 03 Nov. 2017, [Reviewed]
  • Quadrature-modulation envelope-pulse-width-modulation transmission system using quadrature polarized waves
    Ryo Sakai; Tomoaki Mgrita; Yohtaro Umeda; Yusuke Kozawa, Institute of Electrical and Electronics Engineers Inc.
    Midwest Symposium on Circuits and Systems, 27 Sep. 2017, [Reviewed]
  • Underwater Turbo-code optical communication system compatible with partial erasure channel
    Ran Sun; Hiromasa Habuchi; Yusuke Kozawa, Institute of Electrical and Electronics Engineers Inc.
    IEEE Region 10 Annual International Conference, Proceedings/TENCON, 08 Feb. 2017, [Reviewed]
  • Performance evaluation of multiuser digital color shift keying using pseudo-noise code with on-off signaling
    Fuminori Sato; Yusuke Kozawa; Yohtaro Umeda, Institute of Electrical and Electronics Engineers Inc.
    Proceedings - 2016 4th International Symposium on Computing and Networking, CANDAR 2016, 13 Jan. 2017, [Reviewed]
  • Cyclic Mapping Method for Digital Color Shift Keying with RGB-LED Array
    Yusuke Matsuda; Yusuke Kozawa; Yohtaro Umeda
    2017 IEEE RADIO AND WIRELESS SYMPOSIUM (RWS), 2017, [Reviewed]
  • Turbo-code Optical Communication System Compatible with Partial Erasure Channel　　　　　　　　　　　　　　　
    Ran Sun; Hiromasa Habuchi; Yusuke Kozawa
    Proceeding of Premier International Technical Conference of IEEE Region 10, 24 Nov. 2016, [Reviewed]
  • Enhancement of RGB Parallel Turbo-code System with UTPA in Optical Partial Erasure Channel　　　　　　　　　　　　　　　
    Ran Sun; Hiromasa Habuchi; Yusuke Kozawa
    Proceeding of 13th 2016 IEEE Vehicular Technology Society Asia Pacific Wireless Communications Symposium (APWCS2016), 26 Aug. 2016, [Reviewed]
  • Digital Color Shift Keying With Multicolor LED Array
    Naoya Murata; Yusuke Kozawa; Yohtaro Umeda
    IEEE PHOTONICS JOURNAL, Aug. 2016, [Reviewed]
  • Optimization of DSM Sampling Frequency and Interleaving Frequency for Bilevel Quadrature-Modulation EPWM Transmitter
    Takashi Noda; Yohtaro Umeda; Yusuke Kozawa, We previously proposed a bilevel quadrature-modulation (QM) envelope-pulse-width-modulation (EPWM) transmitter using half a side of a trilevel EPWM architecture. However, the optimum relationship between the ΔΣ modulation (DSM) sampling frequency (fs), the interleaving frequency (fi) and the carrier frequency (fc) for a bilevel QM EPWM transmitter has not been investigated. This paper presents this optimum relationship, with the error vector magnitude (EVM) and the coding efficiency (CE) as figures of merit (FOMs)., 信号処理学会
    Journal of Signal Processing, 25 Jul. 2016, [Reviewed]
  • Robust Turbo-Coded OOK System for Background Noise Alleviation and Frame Synchronization in Optical Wireless Channel
    Yuto Matsuda; Hiromasa Habuchi; Yusuke Kozawa, In this paper, optical wireless turbo-coded on-off-keying (OOK) systems have been investigated. These systems suffer from performance deterioration due to background noise and the occurrence of synchronization slip. To solve these problems, an optical wireless system that combines a framed differential OOK (framed-DOOK) system and a punctured turbo-coded system is proposed. The bit error rate (BER) performance ef the punctured turbo-coded framed-DOOK system is evaluated in an optical wireless channel. It is shown that the punctured turbo-coded framed-DOOK system can greatly improve the BER performance of the conventional punctured turbo-coded OOK system. Moreover, in the framed-DOOK systems, the BER of the punctured turbo-coded system is almost the same as that of the standard turbo-coded system. Therefore, the proposed punctured turbo-coded framed-DOOK system is more attractive than the conventional turbo-coded OOK systems for optical wireless communications., 信号処理学会
    Journal of Signal Processing, 25 Jul. 2016, [Reviewed]
  • Differential-OOK System for Underwater Visible-Light Communications
    Saotome Mitsuru; Kozawa Yusuke; Umeda Yohtaro; Habuchi Hiromasa, Corresponding, Underwater wireless optical communication (UWOC) can provide higher-data-rate communication over moderate distances for new underwater applications. However, high-speed data transmission in UWOC is mainly limited by spectral attenuation in water and background noise. In this study, we propose an analytical underwater daylight noise model that incorporates the daylight simulation model SPCTRAL2 with an upwelling solar radiance model for the practical analysis of background light for UWOC. Moreover, we also consider a differential on-off-keying (DOOK) system in our simulation model. This DOOK system was proposed to reduce the effect of background noise in free-space optical communications. It was found that the effectiveness of the DOOK system can be verified by our new underwater daylight noise model. For example, for coastal water and harbor water, the DOOK system can improve BERs compared with an OOK system with a fixed threshold. In addition, the DOOK system can achieve a BER of less than10−6 in coastal water during daylight hours., 信号処理学会
    Journal of Signal Processing, 25 Jul. 2016, [Reviewed]
  • Improved Code-Shift Keying Systems with Functional Pseudonoise Code in Optical-Wireless Channel
    Shota Takayanagi; Hiromasa Habuchi; Yusuke Takamaru; Yusuke Kozawa, In this paper, improved code-shift keying (CSK) systems with a functional pseudonoise (PN) code are considered for use in indoor optical-wireless channels. In CSK, increasing the number of optical PN codes improves the data rate. It is also effective for increasing the number of simultaneously transmitting optical PN codes. This method is named N-parallel CSK (N-CSK), which indicates the transmission of N codes. In order to enhance the data rate of CSK systems, optical PN code design has become one of the key areas of study. As such functional codes, in this paper we consider EPOM and POEPC, which can be generated by fusing two kinds of optical PN codes. CSK systems can implement two-stage demodulation, which demodulates every optical PN code. It is expected that two-stage demodulation will improve the bit error rate (BER) performance of CSK systems. In this paper, we combine two-stage demodulation with CSK systems: CSK using EPOM and N-CSK using POEPC. It was found that the BER of CSK systems can be improved by utilizing two-stage demodulation., 信号処理学会
    Journal of Signal Processing, 25 Jul. 2016, [Reviewed]
  • Novel Parallel Optical Turbo-code Communication System using RGB LEDs for Partial Erasure Channel　　　　　　　　　　　　　　　
    Ran Sun; Hiromasa Habuchi; Yusuke Kozawa
    The 31st International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC 2016), 13 Jul. 2016, [Reviewed]
  • Proposal of a Variable N-CSK with MPSC for an Intellectual Illumination Light Data Transmission System　　　　　　　　　　　　　　　
    Keisuke Osawa; Hiromasa Habuchi; Yusuke Kozawa
    The 31st International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC 2016), 13 Jul. 2016, [Reviewed]
  • Impact of improved on-off-keyed turbo-code system in optical wireless channel　　　　　　　　　　　　　　　
    Yuto Matsuda; Hiromasa Habuchi; Yusuke Kozawa, NCSP
    Proceeding of 2016 RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing (NCSP'16), 08 Mar. 2016, [Reviewed]
  • Data-rate-enhanced optical-wireless code-shift-keying system having two-stage demodulation　　　　　　　　　　　　　　　
    Shota Takayanagi; Hiromasa Habuchi; Yusuke Takamaru; Yusuke Kozawa, NCSP
    Proceeding of 2016 RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing (NCSP'16), 07 Mar. 2016, [Reviewed]
  • Rigorous symbol error rate analysis of hierarchical MPPM-CNK through optical wireless channel　　　　　　　　　　　　　　　
    Atsuhiro Takahashi; Hiromasa Habuchi; Yusuke Kozawa, NCSP
    Proceeding of 2016 RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing (NCSP'16), 07 Mar. 2016, [Reviewed]
  • BER performance of digital color shift keying with target color control
    Shunsuke Igata; Yusuke Kozawa; Yohtaro Umeda; Hiromasa Habuchi, Institute of Electrical and Electronics Engineers Inc.
    2016, 10th International Conference on Signal Processing and Communication Systems, ICSPCS 2016 - Proceedings, 2016, [Reviewed]
  • Theoretical Analysis of Visible-Light Code-Shift Keying Using Extended Pseudo-Orthogonal M-sequence in Line-of-Sight Link
    Shota Takayanagi; Hiromasa Habuchi; Yusuke Kozawa
    2016 10TH INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATION SYSTEMS (ICSPCS), 2016, [Reviewed]
  • Performance evaluation of novel optical-wireless variable N-parallel code-shift-keying
    Keisuke Osawa; Hiromasa Habuchi; Yusuke Kozawa, Institute of Electrical and Electronics Engineers Inc.
    2016, 10th International Conference on Signal Processing and Communication Systems, ICSPCS 2016 - Proceedings, 2016, [Reviewed]
  • Mitigation of the Influence of Optical Background Noise by Using Turbo-Coded DOOK
    Sachin Rai; Yusuke Kozawa; Hiromasa Habuchi; Yuto Matsuda, Research Institute of Signal Processing, Japan
    Journal of Signal Processing, 25 Nov. 2015, [Reviewed]
  • Channel Capacity of Hybrid Dimmable MPPM for Visible Light Communications
    Takashi Ozaki; Yusuke Kozawa; Yohtaro Umeda, Corresponding, VDE
    10th International ITG Conference on Systems, Communications and Coding, 02 Mar. 2015, [Reviewed]
  • Proposal of Turbo-Coded Differential OOK for Optical IM/DD System　　　　　　　　　　　　　　　
    Sachin Rai; Yusuke Kozawa; Hiromasa Habuchi; Yuto Matsuda
    Proceeding of 2015 RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing (NCSP2015), Mar. 2015, [Reviewed]
  • An Experimental Evaluation on EVM Performance for 4-CSK(Color Shift Keying) using visible light with multiple Full-color LEDs
    Hiroki Shimamoto; Yusuke Kozawa; Yohtaro Umeda
    2015 IEEE RADIO AND WIRELESS SYMPOSIUM (RWS), 2015, [Reviewed]
  • Bi-level Quadrature-modulation Low-pass EPWM transmitter Using Half Side of Tri-level Delta Sigma Modulator
    Takashi Noda; Wataru Someya; Yoshiharu Iikura; Yohtaro Umeda; Yusuke Kozawa
    2015 IEEE Topical Conference on Power Amplifiers for Wireless and Radio Applications (PAWR), 2015, [Reviewed]
  • Performance Evaluation of Digital Colour Shift Keying for Visible Light Communications
    Naoya Murata; Hiroki Shimamoto; Yusuke Kozawa; Yohtaro Umeda
    2015 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATION WORKSHOP (ICCW), 2015, [Reviewed]
  • Power-Amplifier Inserted Transversal Filter using High-Order Pass Band
    Kouhei Nagasawa; Shota Fujioka; Kazuhiro Watanabe; Yohtaro Umeda; Yusuke Kozawa
    2015 IEEE INTERNATIONAL SYMPOSIUM ON RADIO-FREQUENCY INTEGRATION TECHNOLOGY (RFIT), 2015, [Reviewed]
  • Indoor Optical-Wireless Code-Shift-Keying with Two-Stages Demodulation
    Shota Takayanagi; Hiromasa Habuchi; Yusuke Kozawa
    2015 IEEE 4TH GLOBAL CONFERENCE ON CONSUMER ELECTRONICS (GCCE), 2015, [Reviewed]
  • Optical-Wireless Enhanced Code-Shift-Keying with IM/DD
    Shota Takayanagi; Hiromasa Habuchi; Yusuke Kozawa
    2015 21ST ASIA-PACIFIC CONFERENCE ON COMMUNICATIONS (APCC), 2015, [Reviewed]
  • 照明可視光通信のための擬直交符号を用いた調光制御法
    尾崎 崇; 小澤 佑介; 楳田 洋太郎, Corresponding, 本稿では，照明可視光通信のために擬直交符号を用いた調光制御(明るさ調整)法が提案されている。さらに，本方式をマルチパルス-パルス位置変調方式に適用することで従来の調光制御法を用いた方式に比べ高い周波数利用効率を達成している。, The Institute of Image Information and Television Engineers
    映像情報メディア学会誌, 25 Apr. 2014, [Reviewed]
  • Variable multi-pulse PPM using new dimming control method for visible light communications
    Takashi Ozaki; Yusuke Kozawa; Yohtaro Umeda
    2014 INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY AND ITS APPLICATIONS (ISITA), 2014, [Reviewed]
  • Improved Error Performance of Variable PPM for Visible Light Communication
    Takashi Ozaki; Yusuke Kozawa; Yohtaro Umeda
    2014 INTERNATIONAL SYMPOSIUM ON WIRELESS PERSONAL MULTIMEDIA COMMUNICATIONS (WPMC), 2014, [Reviewed]
  • 光無線通信におけるPN符号を用いる階層化変調法
    羽渕 裕真; 小澤 佑介, これまでの光無線変調法は1種類の変調法を利用する場合が一般的であり,階層化変調法に関する検討もほとんど行われていない.本論文では,擬似雑音(PN)符号を用いることにより2種類の情報変調法を融合する光階層化変調方式が提案されている.特に,コードシフトキーイング(CSK)と振幅シフトキーイング(ASK)を融合したCSK-ASK方式,CSKとコード数キーイング(CNK)を融合したCSK-CNK方式,マルチパルス・パルス位置変調(MPPM)とCNKを融合したMPPM-CNK方式が提案されている.これらの方式は,信号パターンによって情報伝送する方式と信号電力によって情報伝送する方式を融合したものであり,各変調方式によって伝送距離や必要な同期精度が異なり,通信距離などに応じて受信情報量が異なる階層化が行える.本論文では,同期タイミングが完全である場合と同期誤差がある場合の誤り率特性が示され,各情報変調データを独立に復調できること,2種類の情報変調法の間で性能差があることが示されている., 一般社団法人電子情報通信学会
    電子情報通信学会論文誌. B, 通信, 01 May 2013, [Reviewed], [Invited]
  • Effectiveness of the network coding with frame slotted ALOHA on VANET　　　　　　　　　　　　　　　
    Hiroyuki Higano; Hiromasa Habuchi; Yusuke Kozawa
    Proceeding of 2013 RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing(NCSP'13), Mar. 2013, [Reviewed]
  • Analysis of hierarchical multi-pulse PPM using modified pseudo orthogonal M-sequence set
    Yusuke Kozawa; Hiromasa Habuchi
    2012 INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY AND ITS APPLICATIONS (ISITA 2012), 2012, [Reviewed]
  • Performance analysis of multi-pulse PPM for optical wireless hierarchical transmission system
    Yusuke Kozawa; Hiromasa Habuchi, IEEE
    2012 IEEE Globecom Workshops, GC Wkshps 2012, 2012, [Reviewed]
  • Optical Wireless N-CSK with Modified Pseudo Orthogonal M-Sequence Sets
    Yusuke Kozawa; Hiromasa Habuchi
    IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES, Nov. 2011, [Reviewed]
  • Theoretical analysis of parallel combinatory spread-spectrum communication system for optical wireless communications
    Yusuke Kozawa; Hiromasa Habuchi, IEEE
    ICICS 2011 - 8th International Conference on Information, Communications and Signal Processing, 2011, [Reviewed]
  • A Comparison of Wireless Optical CDMA Systems Using Chip-Level Detection
    Yusuke Kozawa; Hiromasa Habuchi
    IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES, Nov. 2010, [Reviewed]
  • Theoretical analysis of M-CSK/CDMA system in optical wireless channel
    Yusuke Kozawa; Hiromasa Habuchi, IEEE
    ISITA/ISSSTA 2010 - 2010 International Symposium on Information Theory and Its Applications, 2010, [Reviewed]
  • Analysis of Wireless Optical CDMA using Chip-Level Detection
    Yusuke Kozawa; Hiromasa Habuchi
    IWSDA'09: PROCEEDINGS OF THE FOURTH INTERNATIONAL WORKSHOP ON SIGNAL DESIGN AND ITS APPLICATIONS IN COMMUNICATIONS, 2009, [Reviewed]
  • Theoretical Analysis of Optical Wireless CDMA with Modified Pseudo Orthogonal M-sequence Sets
    Yusuke Kozawa; Hiromasa Habuchi
    GLOBECOM 2009 - 2009 IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE, VOLS 1-8, 2009, [Reviewed]
  • Modified pseudo orthogonal M-sequence sets for synchronous optical-CDMA　　　　　　　　　　　　　　　
    Yusuke Kozawa; Hiromasa Habuchi
    The 23rd International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC2008),, Jul. 2008, [Reviewed]
  • Increased Throughput Using Optical PPM-CDMA
    Yusuke Kozawa; Hiromasa Habuchi
    2008 INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY AND ITS APPLICATIONS, VOLS 1-3, 2008, [Reviewed]
  • Enhancement of Optical Wireless Multi-Pulse PPM
    Yusuke Kozawa; Hiromasa Habuchi
    GLOBECOM 2008 - 2008 IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE, 2008, [Reviewed]
  • Theoretical analysis of atmospheric optical PPM CDMA with pseudo-orthogonal M-sequences
    Yusuke Kozawa; Hiromasa Habuchi
    2007 IEEE 18TH INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS, VOLS 1-9, 2007, [Reviewed]
  • Theoretical analysis of atmospheric optical DS/SS with On-Off Orthogonal M-sequence Pairs
    Yusuke Kozawa; Hiromasa Habuchi
    2007 6TH INTERNATIONAL CONFERENCE ON INFORMATION, COMMUNICATIONS & SIGNAL PROCESSING, VOLS 1-4, 2007, [Reviewed]

MISC

Lectures, oral presentations, etc.

  • LEDを使った可視光通信とはなにか　　　　　　　　　　　　　　　
    小澤佑介
    応用科学学会公開技術講演会, 19 Sep. 2019, 一般社団法人応用科学学会, [Invited]

Courses

  • Apr. 2020 - Present
    茨城大学
  • Apr. 2019 - Present
    茨城大学
  • Apr. 2018 - Present
    茨城大学
  • Apr. 2018 - Present
    茨城大学
  • Apr. 2018 - Present
    茨城大学
  • Apr. 2017 - Present
    茨城大学
  • Apr. 2017 - Present
    茨城大学
  • Apr. 2017 - Present
    茨城大学
  • Apr. 2018 - Mar. 2020
    茨城大学
  • Apr. 2018 - Mar. 2020
    茨城大学
  • Apr. 2017 - Mar. 2019
    茨城大学
  • Apr. 2017 - Mar. 2019
    茨城大学
  • Apr. 2013 - Mar. 2017
    東京理科大学
  • Apr. 2012 - Mar. 2017
    東京理科大学
  • Apr. 2012 - Mar. 2017
    東京理科大学
  • Apr. 2012 - Mar. 2013
    東京理科大学
  • Apr. 2012 - Mar. 2013
    東京理科大学

Affiliated academic society

  • Apr. 2018, 日本フォトニクス協議会
  • Mar. 2007, IEEE
  • Dec. 2006, The Institute of Electronics, Information and Communication Engineers (IEICE)

Research Themes

Industrial Property Rights

  • 2022-057100, 2022-057100, 高輝度光源からの光の輝度レベルを検出するための方法
    柴垣太郎(池上通信機)、駒野目裕久(池上通信機)、澤隆雄(海洋研究開発機構)、武内伴照(日本原子力研究開発機構)、後藤慎平(東京海洋大学)、小澤佑介(茨城大学)