Joint Doa-Frequency Estimation for Coherent Signal Identification
Xing Hui Chen, Shi Qiao Gao · Applied Mechanics and Materials · 2014
The problem of spatial temporal spectrum technique for coherent signal identification is studied in this paper. Spatial smoothing scheme is firstly introduced to spatial temporal signal processing to eliminate the singularity of array output covariance matrix, and then spatial temporal spectral analysis technique is used to realize the joint DOA and frequency estimation. Simulation results show the proposed method can indentify all the signal sources correctly even when they are full coherent.