DoA estimation of complex coherent signals based on temporal smoothing and reconstruction of Toeplitz matrix
Zhang Yong-jie · Journal of Computer Applications · 2011
Under the condition of coherent multipath environment,the algorithms of temporal smoothing and reconstruction of Toeplitz matrix were adopted respectively to estimate the DoAs(Direction of Arrivals) of complex coherent signals,furthermore these two algorithms were compared through mathematical analysis and computer simulation,and the following conclusion could be obtained: Both of these two algorithms for DoA estimation of complex coherent signals have the effectivity,the performance of algorithm based on reconstruction of Toeplitz matrix is relatively better but it will lose the array aperture,the algorithm based on temporal smoothing will not lose array aperture and can estimate M-1 coherent multi-paths(M is the number of array elements),however,it has a slightly larger calculation load.