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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2019-01-08
New Robust Adaptive Beamforming Method for Multipath Coherent Signal Reception
By
Min Tang,

    Dr. Min Tang

    National Digital Switching System Engineering and Technological Research Center (NDSC)

    China

    Homepage

Dong Qi,

    Dr. Dong Qi

    National Digital Switching System Engineering and Technological Research Center (NDSC)

    China

    Homepage

Chengcheng Liu,

    Dr. Chengcheng Liu

    Department of Electronics and Communication Engineerineering

    Zhengzhou Institute of Information Science and Technology

    China

    Homepage

Yongjun Zhao

    Dr. Yongjun Zhao

    National Digital Switching System Engineering and Technological Research Center (NDSC)

    China

    Homepage

Progress In Electromagnetics Research M, Vol. 78, 1-10, 2019
doi:10.2528/PIERM18100705 | Google Scholar

Abstract
In this paper a novel robust beamforming method is devised to receive multipath signals effectively. The new algorithm constructs a transformation matrix derived through high-order angle constraint to suppress the interferences with the directions of arrival (DOA) of interference signals. Using the transformed data, the composite steering vector of the multipath signals is estimated as the principal eigenvector of the signal subspace, and then it is utilized in minimum variance distortionless response (MVDR) beamforming to compute the optimal weight vector. The new method is improved in robustness to DOA error by forming wide nulls in incident directions of the interferences, and keeps effective in the presence of coherent interferences. Simulations analyses are provided to illustrate the robustness and effectiveness of the new beamformer.
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Citation
Min Tang, Dong Qi, Chengcheng Liu, and Yongjun Zhao, "New Robust Adaptive Beamforming Method for Multipath Coherent Signal Reception," Progress In Electromagnetics Research M, Vol. 78, 1-10, 2019.
doi:10.2528/PIERM18100705
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