Ryusuke Imai, Yasuhiro Hashimoto, Ken Kikuchi, Shoji Fujii; High-resolution beamforming by Wigner-Ville distribution method, Proceedings of the 1998 International Symposium on Underwater Technology, pp. 499 - 503, April 1998.
Yasuhiro Hashimoto received the B.S. degree in mechatronicscontrol engineering in 1994 from the Tokyo University of Technology. Now he is a Senior Engineer at the Telecommunications System Group, Hitachi Ltd., and his research is in sonar signal processing.