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High-resolution and steady DOA estimation based on reconstruction matrix

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4 Author(s)
Jie Zhang ; Sch. of Electron. & Inf., Northwestern Polytech. Univ., Xi''an, China ; Dengshan Huang ; Huifu Cai ; Ping Huang

Direction of arrival (DOA) estimation of coherent signals is always an important problem on space spectrum estimation. Having studied SVD algorithm, a new method of DOA estimation of coherent signals is proposed based on Toeplitz matrix reconstructing. Firstly, the eigenvector corresponding to the largest eigenvalue is obtained from the received data covariance matrix, and a new Toeplitz matrix is reconstructed by correlation functions of every element and first element in the eigenvector. Secondly, orthogonal subspace algorithm is used to carry out DOA estimation. A great deal of computer simulations demonstrated that it is a high-resolution and steady DOA arithmetic without losing aperture. It provides a new approach of matrix regrouping algorithm applied in array signal processing.

Published in:

Computer Science and Information Technology (ICCSIT), 2010 3rd IEEE International Conference on  (Volume:7 )

Date of Conference:

9-11 July 2010

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