Paper Publications

Journal:Signal Processing

Key Words:Direction-of-arrival (DOA) Real-valued transformation Uniform linear array (ULA) Mutual coupling Calibration

Abstract:In this paper, we propose a real-valued direction-of-arrival (DOA) estimation method for uniform linear arrays (ULAs) in the presence of unknown mutual coupling. By taking advantage of the special structure of the mutual coupling matrix for ULAs, the effect of mutual coupling is eliminated by the inherent mechanism of the proposed method. Moreover, the computational complexity is reduced by a factor of at least four after further performing a unitary transformation capable of converting a complex covariance matrix into a real one. We also investigate the performance loss due to the imperfect structure of the mutual coupling matrix under the NEC-2 code. Experimental results with respect to the NEC-2 code illustrate that our new method even outperforms a state-of-the-art method in the literature.

Co-author:Dean Zhao

First Author:戴继生

Indexed by:Journal paper

Correspondence Author:徐维超

Volume:92

Issue:9

Page Number:2056–2065

Translation or Not:no

Date of Publication:2013-01-30

Included Journals:SCI