Uniform RIP Bounds for Recovery of Signals with Partial Support Information by Weighted ℓp-Minimization

Huanmin Ge, Wengu Chen, Michael K. Ng*

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

1 Citation (Scopus)

Abstract

In this paper, we consider signal recovery in both noiseless and noisy cases via weighted ℓp (0 < p≤ 1) minimization when some partial support information on the signals is available. The uniform sufficient condition based on restricted isometry property (RIP) of order tk for any given constant t>d (d≥1 is determined by the prior support information) guarantees the recovery of all k-sparse signals with partial support information. The new uniform RIP conditions extend the state-of-the-art results for weighted ℓp-minimization in the literature to a complete regime, which fill the gap for any given constant t> 2d on the RIP parameter, and include the existing optimal conditions for the ℓp-minimization and the weighted ℓ1-minimization as special cases.

Original languageEnglish
Pages (from-to)18-57
Number of pages40
JournalCSIAM Transactions on Applied Mathematics
Volume5
Issue number1
DOIs
Publication statusPublished - Mar 2024

Scopus Subject Areas

  • Applied Mathematics

User-Defined Keywords

  • Compressed sensing
  • restricted isometry property
  • stable recovery
  • weighted ℓ minimization

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