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A Novel Denoising Method Based on Discrete Linear Chirp Transform

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CEST-2020_paper_12_4.pdf (485.8Kb)
Date
2020-12-03
Author
Alkishriwo, Osama A. S.
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Abstract
Denoising of chirp based signals is a challenging problem in signal processing and communications. In this paper, we propose a suitable denoising algorithm based on the discrete linear chirp transform (DLCT), which provides local signal decomposition in terms of linear chirps. Analytical expression for the optimal filter response is derived. The method relies on the ability of the DLCT for providing a sparse representation to a wide class of broadband signals like chirp signals. Simulation results show the efficiency of the proposed method, especially for mono-component chirp signals.
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http://dspace.elmergib.edu.ly/xmlui/handle/123456789/190
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