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    Block-sparse signal recovery based on orthogonal matching pursuit via stage-wise weak selection (English)

    In: Signal, Image and Video Processing ; 14 , 1 ; 97-105  ; 2020

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    For recovering the block-sparse signal with unknown block structures, this paper presents a Block Stage-wise Weak Orthogonal Matching Pursuit (BSWOMP) algorithm. Which partitions the original signal into different groups or segments and conducts the selection for these groups separately using weak selection method to update reconstructing support set. And it proves that the Restricted Isometry Property (RIP) of BSWOMP algorithm is slack than Stage-wise Weak Orthogonal Matching Pursuit (SWOMP) algorithm and Block Orthogonal Matching Pursuit (BOMP) algorithm, this means BSWOMP algorithm generates better convergence than traditional sparse signal recovery algorithm. To further analysis of the performance of BSWOMP, the effectiveness of this algorithm is demonstrated by simulations. Experiments results show that the proposed algorithm effectively selects the nonzero elements of the block-sparse signal by a threshold, and compared with the traditional algorithms, BSWOMP algorithm has higher recovering stability, expedites the approximate conjugate gradient update step and brings an evident performance improvement and application prospect.

    Table of contents – Volume 14, Issue 1

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    The tables of contents are generated automatically and are based on the data records of the individual contributions available in the index of the TIB portal. The display of the Tables of Contents may therefore be incomplete.

    1
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    205
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    How to get this title?

    Check access
    Download
    Commercial Copyright fee: €39.95 Basic fee: €4.00 Total price: €43.95
    Academic Copyright fee: €15.00 Basic fee: €2.00 Total price: €17.00

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