A multitaper reassigned spectrogram for increased time-frequency localization precision

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceeding

Abstract

The reassignment vectors of the matched reassigned spectrogram (MRS) have shown to be sensitive to noise, with resulting degraded precision in the time-frequency localization. In this paper we propose a multitaper reassignment (mtRS) method for estimation of time- and frequency locations of Gaussian envelope transients. We present novel expressions for the reassignment vectors with use of a non-matched window. These reassignment vectors are then averaged with the usual MRS reassignment vectors forming a multitaper reassignment with use of orthogonal windows. The mtRS is shown to give a higher precision in the time- and frequency estimates in low SNR compared to the usual MRS and also in comparison to other state-of-the-art methods.

Details

Authors
Organisations
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Signal Processing
Original languageEnglish
Title of host publication ICASSP 2020 - 2020 IEEE International Conference on Acoustics, Speech and Signal Processing
PublisherIEEE - Institute of Electrical and Electronics Engineers Inc.
Pages5310-5314
ISBN (Electronic)978-1-5090-6631-5
Publication statusPublished - 2020
Publication categoryResearch
Peer-reviewedYes
EventIEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) 2020 - Centre de Convencions Internacional de Barcelona (CCIB), Barcelona, Spain
Duration: 2020 May 42020 May 8
https://2020.ieeeicassp.org/

Conference

ConferenceIEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) 2020
Abbreviated titleICASSP 2020
CountrySpain
CityBarcelona
Period2020/05/042020/05/08
Internet address