LFM extended target echoes detecting using Radon-Wigner Method

LFM radar signal with sufficient bandwidth will lead to the high range resolution. When range resolution bin is smaller than the target to be detected, radar echoes will occupy multiple range bins. Dechirping and matched filtering are two pulse compression methods for wideband LFM echoes. This paper put forwards Radon-Wigner transform to detect multi- scatter target echoes. Analysis and computer simulation shows Wigner-Ville transformation of multi-scatter LFM signal will not produce the unwanted cross components, and each component in time-frequency spectrum plot are parallel. Radon-Wigner transform can converge the signal energy together to be detected, so it is a effective processing method.