Title: An Improved Orthogonal Matching Pursuit Algorithm for Blind Sparsity Signal Reconstruction
Abstract:Fixed threshold choice of the existing algorithms limits reconstruction accuracy and speed for blind sparsity signal.Hence,a new improved orthogonal matching pursuit algorithm is put forward.This algo...Fixed threshold choice of the existing algorithms limits reconstruction accuracy and speed for blind sparsity signal.Hence,a new improved orthogonal matching pursuit algorithm is put forward.This algorithm is used to select atoms and determine candidate set more quickly by use of the nonlinear decreasing threshold,adjust the supporting set adaptively at each iteration in order to estimate the true supporting set,and remove lower-energy atoms from the candidate set by use of regularized secondary screening,thus improving the algorithm's speed and accuracy.The simulation results show that the improved algorithm can raise reconstruction accuracy by 8.5% and reconstruction speed by 9.2% under the same test conditions.Read More
Publication Year: 2013
Publication Date: 2013-01-01
Language: en
Type: article
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Cited By Count: 3
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