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2018-03-12
Robust Adaptive Sidelobe Canceller Using SV Mismatch Estimation
By
Zhen Tao,

    Dr. Zhen Tao

    College of Computer and Information Engineering

    Hohai University

    China

    Homepage

Mingwei Shen,

    Prof. Mingwei Shen

    College of Computer & Information Engineering

    Hohai University

    China

    Homepage

Chao Liang,

    Dr. Chao Liang

    Science and Technology on Electronic Information Control Laboratory

    China

    Homepage

Di Wu,

    Dr. Di Wu

    College of Electronic & Information Engineering

    NUAA

    China

    Homepage

Dai-Yin Zhu

    Dr. Dai-Yin Zhu

    Department of Electronic Engineering

    Nanjing University of Aeronautics & Astronautics

    China

    Homepage

Progress In Electromagnetics Research Letters, Vol. 74, 31-38, 2018
doi:10.2528/PIERL18010804 | Google Scholar

Abstract
In this paper, to overcome signal-to-interference-and-noise ratio (SINR) performance degradation in the presence of steering vector (SV) mismatch between beam pointing and desired signal's SVs, we study the mismatch of SV with adaptive uncertainty level. This estimation is derived based on the geometrical interpretation of the mismatch and can be expressed as a simple closed-form expression as a function of the presumed SV and the signal-subspace projection. Then, the adaptive uncertainty algorithm self-adjusts the uncertainty sphere according to the estimated mismatch SV at each iteration. Finally, the robust adaptive sidelobe canceller (R-IASLC) algorithm can accurately evaluate the mismatches between the actual and presumed SVs and improve the target SINR. Simulation results verify the effectiveness of this method.
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Citation
Zhen Tao, Mingwei Shen, Chao Liang, Di Wu, and Dai-Yin Zhu, "Robust Adaptive Sidelobe Canceller Using SV Mismatch Estimation," Progress In Electromagnetics Research Letters, Vol. 74, 31-38, 2018.
doi:10.2528/PIERL18010804
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