Iterative direction-of-arrival estimation with wideband chirp signals
Genyuan Wang, Xiang‐Gen Xia, Victor C. Chen · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 1999
Amin et. al. recently developed a time-frequency MUSIC algorithm with narrow band models for the estimation of direction of arrival (DOA) when the source signals are chirps. In this research, we consider wideband models. The joint time-frequency analysis is first used to estimate the chirp rates of the source signals and then the DOA is estimated by the MUSIC algorithm with an iterative approach.