|
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 |
|
|
Related SDGs |
|
ICHIGE Koichi
|
|
ORCID
Education 【 display / non-display 】
-
-1999.3
University of Tsukuba Doctor Course Completed
-
-1994.3
University of Tsukuba Graduated
Degree 【 display / non-display 】
-
Doctor of Engineering - University of Tsukuba
Campus Career 【 display / non-display 】
-
2019.3
Duty Yokohama National UniversityFaculty of Engineering Division of Intelligent Systems Engineering Professor
-
2007.4-2019.2
Duty Yokohama National UniversityFaculty of Engineering Division of Intelligent Systems Engineering Associate Professor
-
2003.4-2007.3
Duty Yokohama National UniversityFaculty of Engineering Division of Intelligent Systems Engineering Associate Professor
-
2001.4-2003.3
Duty Yokohama National UniversityFaculty of Engineering Division of Intelligent Systems Engineering Lecturer
-
2001.3
Duty Yokohama National UniversitySchool of Engineering Lecturer
External Career 【 display / non-display 】
-
2001.9-2002.9
Swiss Federal Institute of Technology Lausanne (EPFL), Switzerland Visiting Researcher
Academic Society Affiliations 【 display / non-display 】
-
1994.4
The Institute of Electronics,Information and Communication Engineers
-
1994.4
IEEE
Books 【 display / non-display 】
-
理工系のための解く！ 電気回路２ －交流・基礎編－
竹村泰司，濱上知樹，市毛弘一（ Role： Joint author）
講談社 （ ISBN:4062806015 ）
Language：Japanese Book type：Scholarly book
-
理工系のための解く！ 電気回路１ －交流・基礎編－
石井六哉，竹村泰司，濱上知樹，市毛弘一（ Role： Joint author）
講談社 （ ISBN:4061557769 ）
Language：Japanese Book type：Scholarly book
Thesis for a degree 【 display / non-display 】
-
A Study on Improvements in Computational Efficiency of a Filter Design
1999.3
Doctoral Thesis Single Work
-
Discrete B-spline Functions and Their Application to B-spline Decomposition and Reconstruction of Signals
1994.3
Master Thesis Single Work
Papers 【 display / non-display 】
-
Learning-Based Prediction Method for Radio Wave Propagation Using Images of Building Maps
Inoue Kazuya, Ichige Koichi, Nagao Tatsuya, Hayashi Takahiro
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS 21 ( 1 ) 124 - 128 2022.1 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
-
Adaptive Beamforming by Extension and Phase Restoration of Sparse Array Input Signal
MORIMOTO Shinya, IWAZAKI Sho, ICHIGE Koichi
J104-A ( 12 ) 250 - 257 2021.12 [Reviewed]
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：The Institute of Electronics, Information and Communication Engineers Joint Work
In this paper, we propose an adaptive beamforming method for received signals from sparse array antennas and a demodulation method for virtual signals. Previously, it has been confirmed that the direction of arrival (DOA) estimation performance can be improved by using the Khatri-Rao (KR) product expansion process on the received signals of real arrays. However, when virtual signals are used in communication systems that employ digital modulation, the processing in the real array region cannot be directly adopted because of the unique properties of virtual signals. Therefore, in this paper, we propose a beamforming method for the extended virtual signal and try to improve the extended array system by recovering the phase information during the demodulation of the virtual signal. The performance of the proposed array system is evaluated by computational simulation.
-
Simulated Annealing Assisted Sparse Array Selection Utilizing Deep Learning
Wandale Steven, Ichige Koichi
IEEE ACCESS 9 156907 - 156914 2021.11 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
-
Optimization of Microwave Circuit Parameters by CMA-ES Method
Kosuke Hayashi, Koichi Ichige
IEICE Communications Express 10 ( 9 ) 681 - 687 2021.5 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：一般社団法人 電子情報通信学会 Joint Work
-
FMCW radar with multiple initial frequencies for robust source number estimation
Saito Ryo, Kashiwagi Katsuhisa, Arakawa Nobuya, Hamada Shohei, Ichige Koichi
IEICE COMMUNICATIONS EXPRESS 10 ( 9 ) 698 - 703 2021.5 [Reviewed]
DOI Web of Science CiNii Research
Language：English Publishing type：Research paper (scientific journal) Publisher：一般社団法人 電子情報通信学会 Joint Work
<p>We propose a novel method to estimate source number used in Direction Of Arrival (DOA) estimator for Frequency Modulated Continuous Wave - Multiple-Input Multiple-Output (FMCW-MIMO) radar. The main principle is that the phase of the intermediate signals can be modified by the initial frequency of transmitted signals. We confirmed that our method can distinguish true and spurious sources when the number of sources is larger than the number of true sources.</p>
Other Link： https://ci.nii.ac.jp/naid/130008082843
Industrial Property Rights 【 display / non-display 】
-
信号処理装置、信号処理システム、信号処理方法、及びプログラム
平原大地，市毛弘一
Application no：2019-**** Date applied：2019.6
Country of applicant：Domestic
Awards 【 display / non-display 】
-
2021.10 国際会議 ISCIT 組織委員会 ECG Signal Reconstruction Using FMCW Radar and Convolutional Neural Network
Individual or group name of awards：戸田大貴（理工学府M2），安済練（理工学府M1），市毛弘一
-
Best Paper Award
2018.11 ISPACS 2018
Individual or group name of awards：Yuji Araki, Koichi Ichige
Grant-in-Aid for Scientific Research 【 display / non-display 】
-
スパースアレーによる拡張アレー信号処理とその高精度センシング応用
2020.4 - 2023.3
科学研究費補助金 Grant-in-Aid for Scientific Research(C)
Investigator(s)：市毛弘一
Grant type：Competitive
-
スパース信号表現に基づいた高速移動体追跡技術とそのスポーツ競技戦略分析への応用
2016.4 - 2019.3
科学研究費補助金 Grant-in-Aid for Scientific Research(C)
Investigator(s)：市毛弘一
Grant type：Competitive
-
マイクロセル環境下での3次元構造マルチアンテナシステムの開発
2013.4 - 2016.3
科学研究費補助金 Grant-in-Aid for Scientific Research(C)
Investigator(s)：市毛弘一
Grant type：Competitive
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) IEEE
Event date： 2017.12
Language：English Presentation type：Oral presentation (general)
Venue：Rennes, France
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 IEEE
Event date： 2017.10
Language：English Presentation type：Oral presentation (general)
Venue：San Diego, CA, USA
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
Event date： 2017.9
Language：English Presentation type：Oral presentation (general)
-
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
Event date： 2017.9
Language：English Presentation type：Oral presentation (general)
-
An Efficient Direction-Of-Arrival Estimation Method Based on Weighted Sparse Spectrum Fitting
Koichi Ichige
Signal Processing with Adaptive Sparse Structured Representations Workshop
Event date： 2017.6
Language：English Presentation type：Oral presentation (general)
Charge of on-campus class subject 【 display / non-display 】
-
2022 Wireless Communication Systems S
Graduate school of Engineering Science
-
2022 Wireless Communication Systems F
Graduate school of Engineering Science
-
2022 Programming Practice II for Electrical and Computer Engineering
College of Engineering Science
-
2022 Programming Practice for Electrical and Computer Engineering
College of Engineering Science
-
2022 Advanced electromagnetic wave design S
Graduate school of Engineering Science
Committee Memberships 【 display / non-display 】
-
電子情報通信学会信号処理研究専門委員会
2022.6 副委員長
Committee type：Academic society
-
電子情報通信学会英文論文誌A
2019.6 - 2021.5 編集幹事
Committee type：Academic society
-
国際会議ISAP2020
2017.7 - 2021.2 論文委員会副委員長
Committee type：Academic society
-
国際会議ISCAS2019
2015.2 - 2020.5 財務委員長
Committee type：Academic society
-
電子情報通信学会英文論文誌A
2015.1 - 2018.5 編集委員
Committee type：Academic society