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IEICE Trans

Fumihiro YAMASHITA

A Study on Frequency Scaling of Rain Attenuation Using Simultaneous Measurements of Ka-Band and Ku-Band Satellite Beacon Signals
Yasuyuki MAEKAWA Fumihiro YAMASHITA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2025/10/01
Vol. E108-B  No. 10  pp. 1254-1262
Type of Manuscript:  PAPER
Category: Satellite Communications
Keyword: 
satellite communications, rain attenuation, Ka band, Ku band, simultaneous measurement, frequency scaling, 
 Summary | Full Text:PDF
Direct Spectrum Division Transmission Adapter of Burst Signal for Satellite Communications
Fumihiro YAMASHITA Jun-ichi ABE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2025/05/01
Vol. E108-B  No. 5  pp. 673-680
Type of Manuscript:  PAPER
Category: Satellite Communications
Keyword: 
satellite communications, direct spectrum division transmission, burst signal, 
 Summary | Full Text:PDF
A Study on the Rain Attenuation Statistics Using the Different Ku-Band Satellite Signals Measured at Multiple Locations
Yasuyuki MAEKAWA Koichi HARADA Junichi ABE Fumihiro YAMASHITA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2025/02/01
Vol. E108-B  No. 2  pp. 178-188
Type of Manuscript:  PAPER
Category: Satellite Communications
Keyword: 
satellite communications, rain attenuation, Ku-band, ITU-R recommendations, site diversity, worst month statistics, 
 Summary | Full Text:PDF
A Study on the Rain Attenuation Characteristics Using Multiple Ku-Band Satellite Signals in Relation to Rain Area Motion
Yasuyuki MAEKAWA Koichi HARADA Junichi ABE Fumihiro YAMASHITA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2024/12/01
Vol. E107-B  No. 12  pp. 872-881
Type of Manuscript:  INVITED PAPER (Special Section on Emerging Communication Technologies in Conjunction with Main Topics of ICETC 2023)
Category: 
Keyword: 
satellite communications, rain attenuation, Ku-band, ITU-R recommendations, time delayed diversity, site diversity, 
 Summary | Full Text:PDF
Comprehensive Feasibility Study on Direct Spectrum Division Transmission over Multiple Satellite Transponders
Fumihiro YAMASHITA Daisuke GOTO Yasuyoshi KOJIMA Jun-ichi ABE Takeshi ONIZAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2021/04/01
Vol. E104-B  No. 4  pp. 446-454
Type of Manuscript:  PAPER
Category: Satellite Communications
Keyword: 
satellite communications, direct spectrum division transmission, satellite transponders, auto gain control, 
 Summary | Full Text:PDF
FOREWORD
Fumihiro YAMASHITA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2020/10/01
Vol. E103-B  No. 10  pp. 1049-1049
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF
A Novel Multi-Satellite Multi-Beam System with Single Frequency Reuse Applying MIMO
Daisuke GOTO Fumihiro YAMASHITA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2020/08/01
Vol. E103-B  No. 8  pp. 842-851
Type of Manuscript:  PAPER
Category: Antennas and Propagation
Keyword: 
satellite communication, MIMO, pre-coding, equalizer, 
 Summary | Full Text:PDF
Evaluations for Estimation Method of the Distributed Array Antenna (DAA) Radiation Pattern by Experimental Analysis
Daisuke GOTO Fumihiro YAMASHITA Kouhei SUZAKI Hideya SO Yoshinori SUZUKI Kiyoshi KOBAYASHI Naoki KITA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2018/06/01
Vol. E101-B  No. 6  pp. 1494-1502
Type of Manuscript:  PAPER
Category: Satellite Communications
Keyword: 
the distributed array antenna (DAA), array pattern, array factor, antenna pattern estimation, antenna pattern measurement, 
 Summary | Full Text:PDF
Undesired Radiation Suppression Technique for Distributed Array Antenna by Antenna Positioning and Delay Signal Processing
Kouhei SUZUKI Hideya SO Daisuke GOTO Yoshinori SUZUKI Fumihiro YAMASHITA Katsuya NAKAHIRA Kiyoshi KOBAYASHI Takatoshi SUGIYAMA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2017/10/01
Vol. E100-B  No. 10  pp. 1959-1967
Type of Manuscript:  PAPER
Category: Satellite Communications
Keyword: 
distributed array antenna (DAA), undesired radiation suppression, delay compensation, satellite communication, 
 Summary | Full Text:PDF
Progress in and Prospects of On-Board Communication Equipment Technologies for Communications Satellites in Japan
Masazumi UEBA Akihiro MIYASAKA Yoshinori SUZUKI Fumihiro YAMASHITA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2017/09/01
Vol. E100-B  No. 9  pp. 1633-1643
Type of Manuscript:  INVITED SURVEY PAPER
Category: Satellite Communications
Keyword: 
on-board communication equipment, communications satellites, multi-beam satellite communication system, transponder, antenna reflector, on board processor, beam forming, 
 Summary | Full Text:PDF
Direct Spectrum Division Transmission for Highly Efficient Frequency Utilization in Satellite Communications
Jun-ichi ABE Fumihiro YAMASHITA Katsuya NAKAHIRA Kiyoshi KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/02/01
Vol. E95-B  No. 2  pp. 563-571
Type of Manuscript:  PAPER
Category: Satellite Communications
Keyword: 
satellite communications, filter bank, direct spectrum division transmission, spectrum editing technique, 
 Summary | Full Text:PDF
A Prototype Modem for Hyper-Multipoint Data Gathering SATCOM Systems --- A Group Modem Applicable to Arbitrarily and Dynamically Assigned FDMA Signals ---
Kiyoshi KOBAYASHI Fumihiro YAMASHITA Jun-ichi ABE Masazumi UEBA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/11/01
Vol. E92-B  No. 11  pp. 3318-3325
Type of Manuscript:  Special Section PAPER (Special Section on Satellite Communication Technologies in Conjunction with Main Topics of JC-SAT2008)
Category: 
Keyword: 
FFT filter bank, group modem, hyper-multipoint data gathering, arbitrary and dynamic frequency assignment, satellite communication, 
 Summary | Full Text:PDF
Frequency Asynchronous Cross-Polarization Interference Canceller for Variable Polarization Frequency Division Multiplexing (VPFDM)
Fumihiro YAMASHITA Junichi ABE Kiyoshi KOBAYASHI Hiroshi KAZAMA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/11/01
Vol. E92-B  No. 11  pp. 3365-3374
Type of Manuscript:  Special Section PAPER (Special Section on Satellite Communication Technologies in Conjunction with Main Topics of JC-SAT2008)
Category: 
Keyword: 
satellite communications, cross-polarization, frequency offset, interference canceller, 
 Summary | Full Text:PDF
Seamless Symbol Rate Switching Scheme for Multi-Rate FDMA Modem
Fumihiro YAMASHITA Kiyoshi KOBAYASHI Kohei OHATA Masazumi UEBA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2006/02/01
Vol. E89-B  No. 2  pp. 545-555
Type of Manuscript:  PAPER
Category: Satellite Communication
Keyword: 
symbol rate, satellite communications, seamless switching, modem, 
 Summary | Full Text:PDF
Enhanced Multi-Correlator AFC for Fast and Wide Range Frequency Acquisition
Fumihiro YAMASHITA Kiyoshi KOBAYASHI Yoshinori NAKASUGA Jin MITSUGI Masazumi UEBA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2004/08/01
Vol. E87-B  No. 8  pp. 2072-2081
Type of Manuscript:  Special Section PAPER (Special Section on Recent Fundamental Technologies for Broadband Satellite Communications)
Category: 
Keyword: 
AFC, correlators, satellite communications, large acquisition range, 
 Summary | Full Text:PDF