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| DOA Estimation Method Based on Orthogonal Joint Diagonalization of High-order Cumulant |
| Song Hai-yan; Piao Sheng-chun |
| National Laboratory of Underwater Acoustic Technology, Harbin Engineering University, Harbin 150001, China |
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Abstract A new DOA estimation method based on orthogonal joint diagonalization of high-order cumulant is proposed. The high-order cumulant matrices are jointly utilized to DOA. Through processing high-order cumulant matrices by the new technique of orthogonal joint diagonalization, the spatial spectrum can be defined by both joint diagonalization matrix and a set of diagonal matrices. This method is also proved to process the coherent sources, and can be used in the colored noise environment. Compared to cumulant-based method using single high-order cumulant matrix, the proposed method has the higher resolution, lower RMSE and stronger robust.
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Received: 22 September 2008
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Corresponding Authors:
Song Hai-yan
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2010, Vol. 32 
