ICHIGE Koichi

Affiliation

Faculty of Engineering, Division of Intelligent Systems Engineering

Job Title

Professor

Date of Birth

1972

Research Fields, Keywords

Digital Signal Processing, Mobile Communication, Image Processing

Mail Address

E-mail address



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Graduating School 【 display / non-display 】

  • 　
    -
    1994.03

    University of Tsukuba     Graduated

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Graduate School 【 display / non-display 】

  • 　
    -
    1999.03

    University of Tsukuba  Graduate School, Division of Engineering  Doctor Course  Completed

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Degree 【 display / non-display 】

  • Doctor of Engineering -  University of Tsukuba

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Campus Career 【 display / non-display 】

  • 2019.03
    -
    Now

    Duty   Yokohama National UniversityFaculty of Engineering   Division of Intelligent Systems Engineering   Professor  

  • 2007.04
    -
    2019.02

    Duty   Yokohama National UniversityFaculty of Engineering   Division of Intelligent Systems Engineering   Associate Professor  

  • 2003.04
    -
    2007.03

    Duty   Yokohama National UniversityFaculty of Engineering   Division of Intelligent Systems Engineering   Associate Professor  

  • 2001.04
    -
    2003.03

    Duty   Yokohama National UniversityFaculty of Engineering   Division of Intelligent Systems Engineering   Lecturer  

  • 2001.03
    　
    　

    Duty   Yokohama National UniversitySchool of Engineering   Lecturer  

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External Career 【 display / non-display 】

  • 2001.09
    -
    2002.09

    Swiss Federal Institute of Technology Lausanne (EPFL), Switzerland   Visiting Researcher  

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Academic Society Affiliations 【 display / non-display 】

  • 1994.04
    　
    　
     

    The Institute of Electronics,Information and Communication Engineers

  • 1994.04
    　
    　
     

    IEEE

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Thesis for a degree 【 display / non-display 】

  • A Study on Improvements in Computational Efficiency of a Filter Design

    市毛　弘一 

      1999.03

    Doctoral Thesis   Single Work

    　View Summary

    筑波大学大学院博士課程工学研究科 様々なディジタルフィルタの設計における計算効率を改善するアルゴリズムを提案し，それぞれ従来手法との比較を行い有効性を検証した。

    DOI

  • Discrete B-spline Functions and Their Application to B-spline Decomposition and Reconstruction of Signals

    市毛　弘一 

      1994.03

    Master Thesis   Single Work

    　View Summary

    筑波大学大学院修士課程理工学研究科 Ｂ－スプライン関数のひとつの離散系として多重RRS関数を提案し，その諸性質について調べるとともに，A-D/D-A変換回路への応用について検討した．

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Papers 【 display / non-display 】

  • Extended Beamforming by Optimum 2-D Sparse Arrays

    Nakamura Shogo, Iwazaki Sho, Ichige Koichi

    IEICE Communications Express ( 一般社団法人 電子情報通信学会 )    2020

    Joint Work

    　View Summary

    <p>This paper presents an extended beamforming method by two-dimensional (2-D) Sparse Arrays. The authors have proposed optimum 2-D sparse arrays and evaluated them in the sense of direction of arrival (DOA) estimation accuracy. We develop a way of beamforming by the difference co-array of 2-D sparse arrays, and evaluate their beamforming performance as well as bit error rate (BER) characteristics through computer simulation.</p>

    DOI CiNii

  • Location Estimation Accuracy of Augmented Arrays for Millimeter-Wave FMCW-MIMO Radar

    K. Ichige, R. Saito, T. Sugiyama, N. Arakawa, K. Kashiwagi, A. Yuasa

    Proceedings of International Radar Conference ( RADAR )  ( 92 )   2019.09

    Joint Work

  • Extended Beamforming by Sum and Difference Composite Co-Array for Real-Valued Signals

    Sho IWAZAKI, Koichi ICHIGE

    IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences ( IEICE )  Vol.E102-A ( 7 )   918 - 925   2019.07  [Refereed]

    Joint Work

    DOI

  • Optimum 2D Sparse Array and its Interpolation via Nuclear Norm Minimization

    Shogo Nakamura, Sho Iwazaki, Koichi Ichige

    2019 IEEE International Symposium on Circuits and Systems (ISCAS) ( IEEE )    2019.05

    Joint Work

    　View Summary

    Date of Conference: 26-29 May 2019 Date Added to IEEE Xplore: 01 May 2019 Print ISBN: 978-1-7281-0397-6 Print ISSN: 2158-1525 INSPEC Accession Number: 18815736 DOI: 10.1109/ISCAS.2019.8702741 Publisher: IEEE Conference Location: Sapporo, Japan, Japan

    DOI

  • Super Nested Sparse Circular Array for High Resolution DOA Estimation

    Steven Wandale, Thomas Basikolo, Koichi Ichige

    2019 IEEE International Symposium on Circuits and Systems (ISCAS) ( IEEE )    2019.05

    Joint Work

    　View Summary

    Date of Conference: 26-29 May 2019 Date Added to IEEE Xplore: 01 May 2019 Print ISBN: 978-1-7281-0397-6 Print ISSN: 2158-1525 INSPEC Accession Number: 18815515 DOI: 10.1109/ISCAS.2019.8702389 Publisher: IEEE Conference Location: Sapporo, Japan, Japan

    DOI

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Academic Awards Received 【 display / non-display 】

  • Best Paper Award

    2018.11.29   ISPACS 2018  

    Winner： Yuji Araki, Koichi Ichige

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Grant-in-Aid for Scientific Research 【 display / non-display 】

  • Grant-in-Aid for Scientific Research(C)

    Project Year： 2016.04  -  2019.03 

  • Grant-in-Aid for Scientific Research(C)

    Project Year： 2013.04  -  2016.03 

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Presentations 【 display / non-display 】

  • Extended beamforming by sum and difference composite co-array for radio surveillance

    Sho Iwazaki, Koichi Ichige

    2017 IEEE Workshop on Information Forensics and Security (WIFS)  (Rennes, France)  2017.12   IEEE

    　View Summary

    DOI: 10.1109/APUSNCURSINRSM.2017.8072623

  • Underdetermined DOA estimation in the presence of mutual coupling for sparse circular array

    Thomas Basikolo, Koichi Ichige, Hiroyuki Arai

    2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting  (San Diego, CA, USA)  2017.10   IEEE

    　View Summary

    DOI: 10.1109/APUSNCURSINRSM.2017.8072623

  • Multi-sensor Indoor Target Localization Based on Multipath Exploitation

    N. Arakawa, K. Ichige

    International Conference on Indoor Positioning and Indoor Navigation  2017.09  

  • Accurate RSSI-Based Indoor Localization Using Time-Domain Path Loss Compensation

    R. Saito, K. Ichige, T. Ishihara, A. Nakazawa

    International Conference on Indoor Positioning and Indoor Navigation, no. 207  2017.09  

  • An Efficient Direction-Of-Arrival Estimation Method Based on Weighted Sparse Spectrum Fitting

    Koichi Ichige

    Signal Processing with Adaptive Sparse Structured Representations Workshop  2017.06  

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