An adaptive time-frequency representation using a cone-shaped kernel

Richard N. Czerwinski, Douglas L. Jones

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

Abstract

Cone-kernel time-frequency distributions (CKDs) preserve the outer hull of signal time support in the time-frequency plane, and appear promising in many applications. This paper presents a technique for adaptively optimizing the performance of the cone-kernel distribution by varying the cone length in response to changing signal structure. The result is a time-varying spectral estimate that can track signal changes quickly in time, while still allowing the use of windows long enough to give good frequency resolution. The adaptive CKD generally provides much better performance than fixed-length CKDs, and requires only slightly more computation than a fixed-kernel distribution.

Original languageEnglish (US)
Title of host publicationIEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 1993
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages404-407
Number of pages4
ISBN (Electronic)0780309464
DOIs
StatePublished - 1993
Event1993 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 1993 - Minneapolis, United States
Duration: Apr 27 1993Apr 30 1993

Publication series

NameICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
Volume4
ISSN (Print)1520-6149

Conference

Conference1993 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 1993
Country/TerritoryUnited States
CityMinneapolis
Period4/27/934/30/93

ASJC Scopus subject areas

  • Software
  • Signal Processing
  • Electrical and Electronic Engineering

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