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A multitaper reassigned spectrogram for increased time-frequency localization precision

Sandsten, Maria LU ; Reinhold, Isabella LU and Anderson, Rachele LU orcid (2020) IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) 2020 p.5310-5314
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.
Please use this url to cite or link to this publication:
author
; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
ICASSP 2020 - 2020 IEEE International Conference on Acoustics, Speech and Signal Processing
pages
5310 - 5314
publisher
IEEE - Institute of Electrical and Electronics Engineers Inc.
conference name
IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) 2020
conference location
Barcelona, Spain
conference dates
2020-05-04 - 2020-05-08
external identifiers
  • scopus:85089210592
ISBN
978-1-5090-6631-5
DOI
10.1109/ICASSP40776.2020.9053616
language
English
LU publication?
yes
id
6b4d31c1-862e-4ce6-9e9a-d15e05f95504
date added to LUP
2020-05-04 17:15:53
date last changed
2022-04-18 22:01:36
@inproceedings{6b4d31c1-862e-4ce6-9e9a-d15e05f95504,
  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.}},
  author       = {{Sandsten, Maria and Reinhold, Isabella and Anderson, Rachele}},
  booktitle    = {{ICASSP 2020 - 2020 IEEE International Conference on Acoustics, Speech and Signal Processing}},
  isbn         = {{978-1-5090-6631-5}},
  language     = {{eng}},
  pages        = {{5310--5314}},
  publisher    = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}},
  title        = {{A multitaper reassigned spectrogram for increased time-frequency localization precision}},
  url          = {{http://dx.doi.org/10.1109/ICASSP40776.2020.9053616}},
  doi          = {{10.1109/ICASSP40776.2020.9053616}},
  year         = {{2020}},
}