Article ID Journal Published Year Pages File Type
4977406 Signal Processing 2018 5 Pages PDF
Abstract

Nonstationary signals, approximately sparse in the joint time-frequency domain, are considered. Reconstruction of such signals with sparsity constraint is analyzed in this paper. The short-time Fourier transform (STFT) and time-frequency representations that can be calculated using the STFT are considered. The formula for error caused by the nonreconstructed coefficients is derived and presented in the form of a theorem. The results are examined statistically on examples.

Related Topics
Physical Sciences and Engineering Computer Science Signal Processing
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