Communications and Networking. 11th EAI international Conference, ChinaCom 2016 Chongqing, China, September 24-26, 2016, Proceedings, Part II

Research Article

Mutual Coupling Calibration in Super-Resolution Direction Finding for Wideband Signals

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  • @INPROCEEDINGS{10.1007/978-3-319-66628-0_50,
        author={Jiaqi Zhen and Danyang Qin and Bing Zhao},
        title={Mutual Coupling Calibration in Super-Resolution Direction Finding for Wideband Signals},
        proceedings={Communications and Networking. 11th EAI international Conference, ChinaCom 2016 Chongqing, China, September 24-26, 2016, Proceedings, Part II},
        proceedings_a={CHINACOM},
        year={2017},
        month={10},
        keywords={Super-resolution direction finding Array calibration Mutual coupling Wideband signals},
        doi={10.1007/978-3-319-66628-0_50}
    }
    
  • Jiaqi Zhen
    Danyang Qin
    Bing Zhao
    Year: 2017
    Mutual Coupling Calibration in Super-Resolution Direction Finding for Wideband Signals
    CHINACOM
    Springer
    DOI: 10.1007/978-3-319-66628-0_50
Jiaqi Zhen1,*, Danyang Qin1, Bing Zhao1
  • 1: Heilongjiang University
*Contact email: zhenjiaqi2011@163.com

Abstract

Most super-resolution direction finding methods need to know the array manifold exactly, but there is usually mutual coupling error in application, which directly leads to the performance degradation, and even failure. The paper proposed a novel calibration method in super-resolution direction finding for wideband signals based on spatial domain sparse optimization when mutual coupling exists in the array. First, the optimization functions are founded by the signals of every frequency bin, then the functions are optimized iteratively, after that the information of all frequencies is integrated for the calibration, finally, the actual directions of arrival (DOA) can be acquired, the performance of the method has been proved by simulations.