首页|Structured iterative hard thresholding with on- and off-grid applications

Structured iterative hard thresholding with on- and off-grid applications

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We consider linear sparse recovery problems where additional structure regarding the support of the solution is known. The form of the structure considered is non-overlapping sets of indices that each contain part of the support. An algorithm based on iterative hard thresholding is proposed to solve this problem. The convergence and error of the method are analyzed with respect to mutual coherence. Numerical simulations are examined in the context of an inverse source problem, including modifications for off-grid recovery.(c) 2021 Elsevier Inc. All rights reserved.

Iterative hard thresholdingInverse source problemMutual coherenceStructured sparsityARRIVAL ESTIMATIONSTABLE RECOVERYSPARSE SIGNALSUNIFORM RECOVERYINVERSE PROBLEMSREGRESSIONSELECTION

Donato, Joseph S.、Levinson, Howard W.

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Univ Michigan

Santa Clara Univ

2022

Linear Algebra and its Applications

Linear Algebra and its Applications

EISCI
ISSN:0024-3795
年,卷(期):2022.638
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