Wavelet compressive sampling signal reconstruction using upside-down tree structure (Q410477)
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scientific article; zbMATH DE number 6021128
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Wavelet compressive sampling signal reconstruction using upside-down tree structure |
scientific article; zbMATH DE number 6021128 |
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Wavelet compressive sampling signal reconstruction using upside-down tree structure (English)
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3 April 2012
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Summary: We suggest an upside-down tree-based orthogonal matching pursuit (UDT-OMP) compressive sampling signal reconstruction method in wavelet domain. An upside-down tree for the wavelet coefficients of signal is constructed, and an improved version of orthogonal matching pursuit is presented. The proposed algorithm reconstructs compressive sampling signal by exploiting the upside-down tree structure of the wavelet coefficients of signal besides its sparsity in wavelet basis. Compared with conventional greedy pursuit algorithms: orthogonal matching pursuit (OMP) and tree-based orthogonal matching pursuit (TOMP), signal-to-noise ratio (SNR) using UDT-OMP is significantly improved.
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