DOA estimation based on time-frequency maximum likelihood

被引：0

作者：

Tian, Da ^{[1
]}

Zhang, Hong ^{[1
]}

Chen, Tian-Qi ^{[1
]}

机构：

[1] Coll. of E and E, Univ. of Electron Sci. and Technol., Chengdu 610054, China

来源：

Dianzi Yu Xinxi Xuebao/Journal of Electronics and Information Technology | 2005年 / 27卷 / 02期

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摘要：

An algorithm is presented for Direction-Of-Arrival (DOA) estimation of nonstationary signals impinging on the antenna array. The proposed method establishes a simplified array signal model in the time-frequency (t-f) domain by evaluating the cross Pseudo Wigner-Ville Distributions (PWVD) between the outputs of the reference element and other elements of the array, and provides a signal selective DOA estimator based on the t-f maximum likelihood. Compared with the Spatial Time-Frequency Distributions (STFD) matrices-based methods, the proposed method can make full use of the crossterms in the t-f plane, and the computational load is significantly reduced. Simulations are provided to demonstrate the effectiveness of the method.

引用

页码：184 / 188