A New DOA Estimation Method Based on Spatial Structure of Array Signals

Abstract

DOA Estimation is a core item of smart antenna in FDD system. In this paper, an equidistant linear array is divided into two identical sub-arrays, and then a DOA matrix is constructed, the eigenvector matrix of which is the array manifold of the signal. After obtaining the array manifold through eigenvalue decomposition, the DOA of signal can be estimated further. Basing on the theoretical analysis, computer simulation is presented in this paper.