Susumu NAKAZAWA


Dual-Circularly Polarized Offset Parabolic Reflector Antenna with Microstrip Antenna Array for 12-GHz Band Satellite Broadcasting Reception
Masafumi NAGASAKA Susumu NAKAZAWA Shoji TANAKA 
Publication:   
Publication Date: 2018/02/01
Vol. E101-B  No. 2  pp. 340-348
Type of Manuscript:  Special Section PAPER (Special Section on Recent Progress in Antennas and Propagation in Conjunction with Main Topics of ISAP2016)
Category: Antennas
Keyword: 
reflector antennamicrostrip antennacircular polarizationdual polarized antenna
 Summary | Full Text:PDF(5.7MB)

Impact of Interference on 12GHz Band Broadcasting Satellite Services in terms of Increase Rate of Outage Time Caused by Rain Attenuation
Kazuyoshi SHOGEN Masashi KAMEI Susumu NAKAZAWA Shoji TANAKA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2016/10/01
Vol. E99-B  No. 10  pp. 2121-2127
Type of Manuscript:  Special Section PAPER (Special Section on Satellite Communication Technologies in Conjunction with Main Topics of JC-SAT2015)
Category: 
Keyword: 
rain attenuationbroadcasting satellite servicesfrequency sharingevaluation of impact of interferenceoutage time
 Summary | Full Text:PDF(1.8MB)

A Method to Transform Rainfall Rate to Rain Attenuation and Its Application to 21 GHz Band Satellite Broadcasting
Susumu NAKAZAWA Shoji TANAKA Kazuyoshi SHOGEN 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/06/01
Vol. E91-B  No. 6  pp. 1806-1811
Type of Manuscript:  Special Section PAPER (Special Section on 2007 International Symposium on Antennas and Propagation)
Category: Propagation
Keyword: 
rain attenuationfading mitigationphased array antennabroadcasting satellite
 Summary | Full Text:PDF(1.9MB)

A Hierarchical Bayesian Approach to Regularization Problems with Multiple Hyperparameters
Ryo TAKEUCHI Susumu NAKAZAWA Kazuma KOIZUMI Takashi MATSUMOTO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2000/08/25
Vol. E83-A  No. 8  pp. 1641-1650
Type of Manuscript:  Special Section PAPER (Special Section on Digital Signal Processing)
Category: Applications of Signal Processing
Keyword: 
regularizermarginal likelihood
 Summary | Full Text:PDF(2.2MB)