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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2016-10-30
Efficient Localization Algorithm of Mixed Far-Field and Near-Field Sources Using Uniform Circular Array
By
Bing Xue,

    Dr. Bing Xue

    Institute of Electronics, Chinese Academy of Sciences

    China

    Homepage

Guangyou Fang,

    Professor Guangyou Fang

    Institute of Electronics, Chinese Academy of Sciences

    China

    Homepage

Yi-Cai Ji

    Dr. Yi-Cai Ji

    Institute of Electronics

    Chinese Academy of Science

    China

    Homepage

Progress In Electromagnetics Research M, Vol. 51, 139-146, 2016
doi:10.2528/PIERM16082401 | Google Scholar

Abstract
An efficient algorithm based on high-order cumulant is addressed for the scenarios where both far-field and near-field narrow-band signals may exist synchronously. The first matrix built by four-order cumulant is utilized to estimate the two dimensional direction-of-arrivals (DOAs) using the orthogonal projection matrix of the signal subspace and the virtual steering matrix. Then, the second matrix built by four-order cumulant is decomposed to get the noise subspace using the eigen decomposition. Meanwhile, a virtual steering matrix is used to distinguish far-field signals (FFSs) from near-field signals (NFSs). And one-dimensional MUSIC algorithm is used to estimate the range of the NFSs. Compared to the TSMUSIC, the proposed algorithm can provide high resolution for the DOAs. In addition, there is higher accuracy for the DOA of NFS in the proposed algorithm than that in TSMUSIC and in TSMD. Simulation results are carried out to certify the performance of the proposed algorithm.
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Citation
Bing Xue, Guangyou Fang, and Yi-Cai Ji, "Efficient Localization Algorithm of Mixed Far-Field and Near-Field Sources Using Uniform Circular Array," Progress In Electromagnetics Research M, Vol. 51, 139-146, 2016.
doi:10.2528/PIERM16082401
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