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《Journal of Data Acquisition and Processing》 2011-01
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Unitary Transformation DOA Algorithm Based on Toeplitz Matrix

Han Yong,Qiao Xiaolin,Jin Ming,Cao Bingxia(Institute of Information Engineering,Harbin Institute of Technology,Haerbin,150001,China)  
To improve estimation performance and decrease calculation capacity of TOEP-MUSIC algorithm,a DOA estimation algorithm based on Toeplitz matrix unitary transformation(UHT-MUSIC) is proposed.In UHT-MUSIC algorithm,Toeplitz covariance matrix is constructed and transformed into Hermition matrix with remaining the estimation performance unchanged,and then changed into a real matrix by unitary transformation.DOA estimation is operated by MUSIC algorithm based on the real covariance matrix,so that the calculation capacity of matrix eigenvalue decomposition and peak search is reduced to 1/4 of the TOEP-MUSIC algorithm.The estimation performance is improved.Simulation results prove that the algorithm is effective.
【Fund】: 哈尔滨工业大学(威海)校科学研究基金(HIT(WH)XBQD201022)资助项目
【CateGory Index】: TN911.23
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【Citations】
Chinese Journal Full-text Database 5 Hits
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Chinese Journal Full-text Database 10 Hits
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