Improved time-frequency filtering using an STFT analysis-modification-synthesis method

Michael L. Kramer, Douglas L. Jones

Research output: Contribution to conferencePaper

Abstract

Time-frequency representations provide a convenient method for analyzing signals whose frequency content changes with time, and specifically those signals with components that overlap in time and/or frequency. In this paper we suggest a technique for optimally concentrating components of a signal in the time-frequency plane via a particular choice of analysis window for the short-time Fourier transform (STFT), as well as an efficient method of optimal least-squares synthesis of a component of interest from the STFT. Using the described synthesis method in conjunction with an optimally localized STFT yields a very accurate estimate of a component that may not otherwise be separable from other components or noise in the signal.

Original languageEnglish (US)
Pages264-267
Number of pages4
StatePublished - Dec 1 1994
EventProceedings of the IEEE-SP International Symposium on Time-Frequency and Time-Scale Analysis - Philadelphia, PA, USA
Duration: Oct 25 1994Oct 28 1994

Other

OtherProceedings of the IEEE-SP International Symposium on Time-Frequency and Time-Scale Analysis
CityPhiladelphia, PA, USA
Period10/25/9410/28/94

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Fourier transforms

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Kramer, M. L., & Jones, D. L. (1994). Improved time-frequency filtering using an STFT analysis-modification-synthesis method. 264-267. Paper presented at Proceedings of the IEEE-SP International Symposium on Time-Frequency and Time-Scale Analysis, Philadelphia, PA, USA, .

Improved time-frequency filtering using an STFT analysis-modification-synthesis method. / Kramer, Michael L.; Jones, Douglas L.

1994. 264-267 Paper presented at Proceedings of the IEEE-SP International Symposium on Time-Frequency and Time-Scale Analysis, Philadelphia, PA, USA, .

Research output: Contribution to conferencePaper

Kramer, ML & Jones, DL 1994, 'Improved time-frequency filtering using an STFT analysis-modification-synthesis method', Paper presented at Proceedings of the IEEE-SP International Symposium on Time-Frequency and Time-Scale Analysis, Philadelphia, PA, USA, 10/25/94 - 10/28/94 pp. 264-267.
Kramer ML, Jones DL. Improved time-frequency filtering using an STFT analysis-modification-synthesis method. 1994. Paper presented at Proceedings of the IEEE-SP International Symposium on Time-Frequency and Time-Scale Analysis, Philadelphia, PA, USA, .
Kramer, Michael L. ; Jones, Douglas L. / Improved time-frequency filtering using an STFT analysis-modification-synthesis method. Paper presented at Proceedings of the IEEE-SP International Symposium on Time-Frequency and Time-Scale Analysis, Philadelphia, PA, USA, .4 p.
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