Techniques to Obtain Good Resolution and Concentrated Time-Frequency Distributions: A Review

We present a review of the diversity of concepts and motivations for improving the concentration and resolution of time-frequency distributions (TFDs) along the individual components of the multi-component signals. The central idea has been to obtain a distribution that represents the signal&#39...

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Main Authors: Imran Shafi, Jamil Ahmad, Syed Ismail Shah, F. M. Kashif
Format: Article
Language:English
Published: SpringerOpen 2009-01-01
Series:EURASIP Journal on Advances in Signal Processing
Online Access:http://dx.doi.org/10.1155/2009/673539
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author Imran Shafi
Jamil Ahmad
Syed Ismail Shah
F. M. Kashif
author_facet Imran Shafi
Jamil Ahmad
Syed Ismail Shah
F. M. Kashif
author_sort Imran Shafi
collection DOAJ
description We present a review of the diversity of concepts and motivations for improving the concentration and resolution of time-frequency distributions (TFDs) along the individual components of the multi-component signals. The central idea has been to obtain a distribution that represents the signal's energy concentration simultaneously in time and frequency without blur and crosscomponents so that closely spaced components can be easily distinguished. The objective is the precise description of spectral content of a signal with respect to time, so that first, necessary mathematical and physical principles may be developed, and second, accurate understanding of a time-varying spectrum may become possible. The fundamentals in this area of research have been found developing steadily, with significant advances in the recent past.
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spelling doaj.art-46056643732a4a51b71ab83c15c29f692022-12-22T03:10:42ZengSpringerOpenEURASIP Journal on Advances in Signal Processing1687-61721687-61802009-01-01200910.1155/2009/673539Techniques to Obtain Good Resolution and Concentrated Time-Frequency Distributions: A ReviewImran ShafiJamil AhmadSyed Ismail ShahF. M. KashifWe present a review of the diversity of concepts and motivations for improving the concentration and resolution of time-frequency distributions (TFDs) along the individual components of the multi-component signals. The central idea has been to obtain a distribution that represents the signal's energy concentration simultaneously in time and frequency without blur and crosscomponents so that closely spaced components can be easily distinguished. The objective is the precise description of spectral content of a signal with respect to time, so that first, necessary mathematical and physical principles may be developed, and second, accurate understanding of a time-varying spectrum may become possible. The fundamentals in this area of research have been found developing steadily, with significant advances in the recent past.http://dx.doi.org/10.1155/2009/673539
spellingShingle Imran Shafi
Jamil Ahmad
Syed Ismail Shah
F. M. Kashif
Techniques to Obtain Good Resolution and Concentrated Time-Frequency Distributions: A Review
EURASIP Journal on Advances in Signal Processing
title Techniques to Obtain Good Resolution and Concentrated Time-Frequency Distributions: A Review
title_full Techniques to Obtain Good Resolution and Concentrated Time-Frequency Distributions: A Review
title_fullStr Techniques to Obtain Good Resolution and Concentrated Time-Frequency Distributions: A Review
title_full_unstemmed Techniques to Obtain Good Resolution and Concentrated Time-Frequency Distributions: A Review
title_short Techniques to Obtain Good Resolution and Concentrated Time-Frequency Distributions: A Review
title_sort techniques to obtain good resolution and concentrated time frequency distributions a review
url http://dx.doi.org/10.1155/2009/673539
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