Direction of arrival estimation for wideband uncorrelated and coherent signals

Jin Zhang; Yunxiang Mao; Zhongfu Ye

doi:10.1117/12.2021254

13 March 2013 Direction of arrival estimation for wideband uncorrelated and coherent signals

Jin Zhang, Yunxiang Mao, Zhongfu Ye

Proceedings Volume 8783, Fifth International Conference on Machine Vision (ICMV 2012): Computer Vision, Image Analysis and Processing; 87831X (2013) https://doi.org/10.1117/12.2021254
Event: Fifth International Conference on Machine Vision (ICMV 12), 2012, Wuhan, China

Abstract

An efficient direction of arrival estimation method for wideband uncorrelated and coherent signals is proposed with a uniform linear array. Firstly, uncorrelated signals are resolved by applying a test of orthogonality of frequency subspaces method (TOFS). Secondly, at each frequency bin, the contributions of uncorrelated signals and noise are eliminated and a new matrix is formed. Then, forward spatial smoothing technique is performed on the new matrices and coherent signals are resolved with TOFS. The method can resolve more wideband signals than the array elements. Simulation results demonstrate the effectiveness and efficiency of the method.

Citation Download Citation

Jin Zhang, Yunxiang Mao, and Zhongfu Ye "Direction of arrival estimation for wideband uncorrelated and coherent signals", Proc. SPIE 8783, Fifth International Conference on Machine Vision (ICMV 2012): Computer Vision, Image Analysis and Processing, 87831X (13 March 2013); https://doi.org/10.1117/12.2021254

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