Fast Correlation Method for Partial Fourier and Hadamard Sensing Matrices in Matching Pursuit Algorithms

Kee-Hoon KIM, Hosung PARK, Seokbeom HONG, Jong-Seon NO

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Summary :

There have been many matching pursuit algorithms (MPAs) which handle the sparse signal recovery problem, called compressed sensing (CS). In the MPAs, the correlation step makes a dominant computational complexity. In this paper, we propose a new fast correlation method for the MPA when we use partial Fourier sensing matrices and partial Hadamard sensing matrices which are widely used as the sensing matrix in CS. The proposed correlation method can be applied to almost all MPAs without causing any degradation of their recovery performance. Also, the proposed correlation method can reduce the computational complexity of the MPAs well even though there are restrictions depending on a used MPA and parameters.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E97-A No.8 pp.1674-1679
Publication Date
2014/08/01
Publicized
Online ISSN
1745-1337
DOI
10.1587/transfun.E97.A.1674
Type of Manuscript
PAPER
Category
Digital Signal Processing

Authors

Kee-Hoon KIM
  Seoul National University
Hosung PARK
  Seoul National University
Seokbeom HONG
  Samsung Electric, Co. Ltd.
Jong-Seon NO
  Seoul National University

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