Susumu NAKAZAWA


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)