The exact knowledge of array manifold is vital for finding the direction of arrival (DOA) of targets, while the sensor gain and phase uncertainties can degrade the estimation performance. Focusing on the array uncertainty induced by distorted sensors, we present a robust DOA estimation algorithm for a uniform linear array, where source enumeration and distorted sensor detection are also accomplished. The received array data in the presence of sensor uncertainties are decomposed into a low-rank matrix and a row-sparse component, corresponding to the perfect array observations and errors, respectively. Rather than tackling these two terms in a separate manner, we review their relationship and jointly optimize the perfect array observations and the sparse gain-phase error vector. When formulating the model, variables with the low-rankness or sparsity property are directly regularized by the rank function or $\ell _{0}$-norm, instead of their surrogates. We tackle the resultant problem using a block proximal linear method so that closed-form solutions to the subproblems are derived. The subsequent $\ell _{0}$-norm optimization is solved via the hard-thresholding operator, where the threshold is adaptively determined by our designed scaled quartile scheme. Such an $\ell _{0}$-norm minimization scheme also addresses the tasks of source enumeration and distorted sensor detection. Besides, the convergence of our method is proved. To verify its effectiveness, comprehensive simulations are conducted, demonstrating the superiority of the proposed algorithm over the state-of-the-art methods.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Joint DOA Estimation and Distorted Sensor Detection


    Beteiligte:
    Wang, Xiang-Yu (Autor:in) / Li, Xiao-Peng (Autor:in) / Huang, Huiping (Autor:in) / So, Hing Cheung (Autor:in)


    Erscheinungsdatum :

    01.08.2025


    Format / Umfang :

    2147563 byte




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Low-Rank and Row-Sparse Decomposition for Joint DOA Estimation and Distorted Sensor Detection

    Huang, Huiping / Liu, Qi / So, Hing Cheung et al. | IEEE | 2023


    Distorted grating simplifies wavelength sensor

    British Library Online Contents | 2001


    Robust DOA Estimation With Distorted Sensors

    Wang, Xiang-Yu / Li, Xiao-Peng / Huang, Huiping et al. | IEEE | 2024


    Shape Estimation of Distorted Flexible Structures

    Hakim, S. / Fuchs, M. / American Institute of Aeronautics and Astronautics et al. | British Library Conference Proceedings | 1996


    Shape estimation of distorted flexible structures

    Hakim, S. / Fuchs, M. | AIAA | 1996