DoA estimation of complex coherent signals based on temporal smoothing and reconstruction of Toeplitz matrix
SUI Wei-wei1,2,3,JING Xiao-rong1,2,4,ZHOU Wei1,2,ZHANG Yong-jie1
1. Chongqing Key Laboratory of Mobile Communications Technology，Chongqing 400065，China 2. School of Communication and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065，China 3. Science and Technology on Information Transmission and Dissemination in Communication Networks Laboratory，the 54th Research Institute of China Electronics Technology Group Corporation, Shijiazhuang Hebei 050081，China 4. Science and Technology on Information Transmission and Dissemination in Communication Networks Laboratory，
the 54th Research Institute of China Electronics Technology Group Corporation, Shijiazhuang Hebei 050081，China
Abstract：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.
隋伟伟 景小荣 周围 张永杰. 基于时间平滑和Toeplitz矩阵重构的复相干信号DoA估计[J]. 计算机应用, 2011, 31(12): 3233-3235.
SUI Wei-wei JING Xiao-rong ZHOU Wei ZHANG Yong-jie. DoA estimation of complex coherent signals based on temporal smoothing and reconstruction of Toeplitz matrix. Journal of Computer Applications, 2011, 31(12): 3233-3235.
2011, Vol. 31 
