Techniques to Obtain Good Resolution and Concentrated Time-Frequency Distributions: A Review
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Kashif_Techniques to Obtain.pdf
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Author(s)
Shafi, Imran
Ahmad, Jamil
Shah, Syed Ismail
Kashif, Faisal Mahmood
Date Issued
April 2009
Journal
EURASIP Journal on Advances in Signal Processing
Publisher
Hindawi Publishing
Citation
Imran Shafi, Jamil Ahmad, Syed Ismail Shah, and F. M. Kashif, “Techniques to Obtain Good Resolution and Concentrated Time-Frequency Distributions: A Review,” EURASIP Journal on Advances in Signal Processing, vol. 2009, Article ID 673539, 43 pages, 2009. doi:10.1155/2009/673539
Version
Final published version
Abstract
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.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Massachusetts Institute of Technology. Laboratory for Electromagnetic and Electronic Systems
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Creative Commons Attribution
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DOI of Published Version
http://dx.doi.org/10.1155/2009/673539
