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IEICE Trans

Ryohei NAKAMURA

ISAR Image Drone Classification with CNN Using Millimeter-Wave Fast Chirp Modulation MIMO Radar
Kenshi OGAWA Dovchin TSAGAANBAYAR Ryohei NAKAMURA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2025/04/01
Vol. E108-B  No. 4  pp. 553-563
Type of Manuscript:  PAPER
Category: Sensing
Keyword: 
drone classification, millimeter-wave MIMO radar, fast chirp, inverse synthetic aperture radar, convolutional neural network, 
 Summary | Full Text:PDF
Scatterer Information Estimation Method by TD-SPT Using Numerical Data of Response Waveforms of Backward Transient Scattering Field Components
Keiji GOTO Toru KAWANO Ryohei NAKAMURA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2025/01/01
Vol. E108-C  No. 1  pp. 1-15
Type of Manuscript:  PAPER
Category: Electromagnetic Theory
Keyword: 
scatterer information estimation method, time-domain saddle-point technique (TD-SPT), polarization independence of estimation formulas, backward transient scattering field components, amplitude intensity ratios (AIRs), 
 Summary | Full Text:PDF
Estimation of Drone Payloads Using Millimeter-Wave Fast-Chirp-Modulation MIMO Radar
Kenshi OGAWA Masashi KUROSAKI Ryohei NAKAMURA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2024/05/01
Vol. E107-B  No. 5  pp. 419-428
Type of Manuscript:  PAPER
Category: Sensing
Keyword: 
millimeter-wave MIMO radar, fast chirp, radar imaging, drone detection, payload weight estimation, 
 Summary | Full Text:PDF
Adaptive Buffering Time Optimization for Path Tracking Control of Unmanned Vehicle by Cloud Server with Digital Twin
Yudai YOSHIMOTO Masaki MINAGAWA Ryohei NAKAMURA Hisaya HADAMA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2023/07/01
Vol. E106-B  No. 7  pp. 603-613
Type of Manuscript:  PAPER
Category: Navigation, Guidance and Control Systems
Keyword: 
unmanned vehicle, digital twin, jitter buffer, remote autonomous control, path tracking control, 
 Summary | Full Text:PDF
Effectiveness of Digital Twin Computing on Path Tracking Control of Unmanned Vehicle by Cloud Server
Yudai YOSHIMOTO Taro WATANABE Ryohei NAKAMURA Hisaya HADAMA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2022/11/01
Vol. E105-B  No. 11  pp. 1424-1433
Type of Manuscript:  PAPER
Category: Internet
Keyword: 
unmanned vehicle, digital twin, transmission delay, remote autonomous control, path tracking control, 
 Summary | Full Text:PDF
Improvement of Ranging Accuracy during Interference Avoidance for Stepped FM Radar Using Khatri-Rao Product Extended-Phase Processing
Keiji JIMI Isamu MATSUNAMI Ryohei NAKAMURA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2019/01/01
Vol. E102-B  No. 1  pp. 156-164
Type of Manuscript:  PAPER
Category: Sensing
Keyword: 
stepped FM radar, spectrum hole, Khatri-Rao product extended-phase processing, range sidelobe, distance resolution, 
 Summary | Full Text:PDF
RCS Measurements for Vehicles and Pedestrian at 26 and 79GHz
Isamu MATSUNAMI Ryohei NAKAMURA Akihiro KAJIWARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2016/01/01
Vol. E99-A  No. 1  pp. 204-206
Type of Manuscript:  Special Section LETTER (Special Section on Wideband Systems)
Category: 
Keyword: 
automotive radar, millimeter-wave, radar cross section, 
 Summary | Full Text:PDF