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《Journal of Electronics & Information Technology》 2014-11
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An Improved Decorrelation Algorithm for Polarization Sensitive Array

Li Hui-yong;Liu Fang;Xie Ju-lan;Fan Yong;School of Electronic Engineering,University of Electronic Science and Technology of China;  
The traditional polarization sensitive array signal processing methods, e.g. parameter estimation and beamformimg, can not achieve excellent performance under the situation of coherent signal sources. An improved decorrelation algorithm is proposed based on polarization smoothing algorithm. By choosing optimal weight vectors for the signal covariance matrixes of each subarray and ensuring the smoothing covariance matrix satisfies the Toeplitz constraint, the correlation between signals is then eliminated. The derivation of optimal weight vector is given and the rank of the smoothing covariance matrix is analyzed. Simulation results verify the effectiveness of the improved algorithm and the algorithm is also suitable for the nonuniform and coherent noise.
【Fund】: 国家自然科学基金(61371184 61301262);; 中国博士后科学基金(2012M520077)资助课题
【CateGory Index】: TN911.7
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