High Resolution DOA Estimation Algorithm with Low SNR
Zhigang Wang · Jisuanji gongcheng · 2009
A method of estimating Direction Of Arrival(DOA) based on Multistage Weiner Filtering(MSWF) is proposed. Rough estimation of DOA is provided by testing orthogonality between estimated signal subspace and noise subspace and gets more precise results through testing cross-correlation function of MSWF. Simulation shows that the proposed method offers improvements in estimation performance under low SNR condition compared with the previous algorithm.