DOA estimation using the largest eigenvalue algorithm of temporal-spatial averaging
Tiancong Huang · Chinese Journal of Radio Science · 2006
Making use of the temporal-spatial stationary characteristic of the array antenna received signals, an improved DOA estimation algorithm based on the largest eigenvalue is proposed. With modification of the sampling correlation matrix of array output signals, the performance of DOA estimation is improved greatly, especially on the condition that signal-to-noise ratio is low and the number of snapshot is not enough. Theoretical analyses and simulation results show that the improved method can converge rapidly with simple structure and has quite good robustness under severe multipath propagation circumstances.