An adaptive technique for high resolution time-varying spectral estimation

Adam B. Fineberg, Richard J. Mammone

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

An adaptive technique which determines the spectral coefficients of a time-varying signal is presented. The algorithm performs a least-squares decomposition of the signal onto a high-resolution nonharmonic Fourier basis. The spectral estimate is update sample by sample and produces a decomposition with very good localization in both the time and frequency domains. This yields a distribution of signal intensities in the time-frequency plane which tracks the instantaneous frequency and local bandwidth of the signal. The detection of tones spaced closer than expected by the uncertainty distance (super-resolution) is shown by computer simulation. Numerical results demonstrate the super-resolving capability and fast tracking rate as well as the stability in the presence of additive noise. Potential applications of this method include tracking of frequency hopping communications, FM demodulation, and formant tracking in speech signals.

Original languageEnglish (US)
Title of host publicationProceedings - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing
PublisherPubl by IEEE
Pages3185-3188
Number of pages4
Volume5
ISBN (Print)078030033
StatePublished - Dec 1 1991
EventProceedings of the 1991 International Conference on Acoustics, Speech, and Signal Processing - ICASSP 91 - Toronto, Ont, Can
Duration: May 14 1991May 17 1991

Other

OtherProceedings of the 1991 International Conference on Acoustics, Speech, and Signal Processing - ICASSP 91
CityToronto, Ont, Can
Period5/14/915/17/91

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Electrical and Electronic Engineering
  • Acoustics and Ultrasonics

Fingerprint Dive into the research topics of 'An adaptive technique for high resolution time-varying spectral estimation'. Together they form a unique fingerprint.

  • Cite this

    Fineberg, A. B., & Mammone, R. J. (1991). An adaptive technique for high resolution time-varying spectral estimation. In Proceedings - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing (Vol. 5, pp. 3185-3188). Publ by IEEE.