TY - GEN
T1 - Bistatic 3D subsurface radar imaging
AU - Hayashi, Naoki
AU - Sato, Motoyuki
PY - 2008
Y1 - 2008
N2 - Two design methods of a filter in frequency-spatial frequency domain (f-k filter) have been developed for bistatic radar to suppress direct wave which causes significant artifacts in a radar image. One method is to reject a region in f-k domain, where the region is determined from a position information of a transmitter and a receiver. The other method uses time shift to eliminate a difference of arrival time of the direct wave. Then, f-k spectrum of the direct wave concentrates around frequency axis, and filter to reject DC component in spatial direction is designed. Both methods are verified with a laboratory measurement. They can suppress strong artifacts caused by the direct wave clearly, and give more reliable image to detect a buried object.
AB - Two design methods of a filter in frequency-spatial frequency domain (f-k filter) have been developed for bistatic radar to suppress direct wave which causes significant artifacts in a radar image. One method is to reject a region in f-k domain, where the region is determined from a position information of a transmitter and a receiver. The other method uses time shift to eliminate a difference of arrival time of the direct wave. Then, f-k spectrum of the direct wave concentrates around frequency axis, and filter to reject DC component in spatial direction is designed. Both methods are verified with a laboratory measurement. They can suppress strong artifacts caused by the direct wave clearly, and give more reliable image to detect a buried object.
UR - http://www.scopus.com/inward/record.url?scp=85086758142&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85086758142&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85086758142
T3 - Proceedings of the European Conference on Synthetic Aperture Radar, EUSAR
BT - EUSAR 2008 - 7th European Conference on Synthetic Aperture Radar
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 7th European Conference on Synthetic Aperture Radar, EUSAR 2008
Y2 - 2 June 2008 through 5 June 2008
ER -