This article presents a three-step direction-of-arrival estimation method aimed at addressing impulsive noise and array gain-phase errors. Initially, a robustness function combining the logarithmic function with least squares is introduced to address impulsive noise. This robust function is utilized to formulate a low-rank matrix approximation problem for acquiring noise-free received data, which is solved using the alternating-direction method of multipliers. Subsequently, exploiting the obtained noise-free received data, the array gain-phase errors are estimated using the root-rank reduction estimator. Finally, based on the acquired noise-free received data and gain-phase errors, a minimization problem incorporating the logarithmic function is formulated. To efficiently solve this minimization problem, it is transformed into a weighted $l_{2,1}$-norm minimization problem, and the fast-iterative-shrinkage-thresholding algorithm is employed. Compared to existing methods, the proposed approach demonstrates superior estimation accuracy and precision while achieving an attractive tradeoff between performance and computational complexity.


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    Titel :

    Robust Direction-of-Arrival Estimation With Outliers and Partly Calibrated Uniform Linear Array


    Beteiligte:
    Xiao, Wudang (Autor:in) / Li, Yingsong (Autor:in) / Yu, Canping (Autor:in) / Zhao, Luyu (Autor:in) / Pan, Mengguan (Autor:in) / de Lamare, Rodrigo C. (Autor:in)


    Erscheinungsdatum :

    01.04.2025


    Format / Umfang :

    1129314 byte




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch