Array Denoise Using Matching Pursuit for Improved DOA Estimation
Song Hong · Electronic Information Warfare Technology · 2011
An effective scheme to remove noises from the array signal using matching pursuit algorithm is proposed.The denoised array signal which can be used for Direction of Arrival(DOA) estimation can improve the performance of algorithm greatly.Any signal can be decomposed adaptively into a linear weighed expansion of atomic vectors which are selected from an over-complete dictionary.This kind of denosing method can remove noises and remain characteristic of array signal at the same time,which can improve the performance of the DOA estimation no matter what kind of method is used.The simulation results show that the proposed method is effective.