ROBUST PHASE DIFFERENCE ESTIMATION OF TRANSIENTS IN HIGH NOISE LEVELS
(2022) 30th European Signal Processing Conference, EUSIPCO 2022 In European Signal Processing Conference 2022-August. p.2271-2275- Abstract
This paper presents the Reassignment Vector Phase Difference Estimator (RVPDE), which gives noise robust relative phase estimates of oscillating transient signals in high noise levels. Estimation of relative phase information between signals is of interest for direction of arrival estimation, source separation and spatio-temporal decoding in neurology as well as for soundscape analysis. The RVPDE relies on the spectrogram reassignment vectors which contains information of the time-frequency local phase difference between two transient signals. The final estimate, which is robust to high noise levels, is given as the median over the local time-frequency area. The proposed technique is shown to outperform state-of-the-art methods in... (More)
This paper presents the Reassignment Vector Phase Difference Estimator (RVPDE), which gives noise robust relative phase estimates of oscillating transient signals in high noise levels. Estimation of relative phase information between signals is of interest for direction of arrival estimation, source separation and spatio-temporal decoding in neurology as well as for soundscape analysis. The RVPDE relies on the spectrogram reassignment vectors which contains information of the time-frequency local phase difference between two transient signals. The final estimate, which is robust to high noise levels, is given as the median over the local time-frequency area. The proposed technique is shown to outperform state-of-the-art methods in simulations for high noise levels. A discussion on the statistical distribution of the estimates is also presented, and finally an example of phase difference estimation of visually evoked potentials measured from electrical brain signals is shown.
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- author
- Keding, Oskar LU and Sandsten, Maria LU
- organization
- publishing date
- 2022
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- keywords
- EEG, low SNR, oscillating transient signals, phase estimation, time-frequency reassignment
- host publication
- 30th European Signal Processing Conference, EUSIPCO 2022 - Proceedings
- series title
- European Signal Processing Conference
- volume
- 2022-August
- pages
- 5 pages
- publisher
- European Signal Processing Conference, EUSIPCO
- conference name
- 30th European Signal Processing Conference, EUSIPCO 2022
- conference location
- Belgrade, Serbia
- conference dates
- 2022-08-29 - 2022-09-02
- external identifiers
-
- scopus:85141010504
- ISSN
- 2219-5491
- ISBN
- 9789082797091
- language
- English
- LU publication?
- yes
- id
- b3211856-4f6f-485d-8fce-67078f99bf64
- date added to LUP
- 2022-12-05 14:22:12
- date last changed
- 2023-11-21 13:27:23
@inproceedings{b3211856-4f6f-485d-8fce-67078f99bf64, abstract = {{<p>This paper presents the Reassignment Vector Phase Difference Estimator (RVPDE), which gives noise robust relative phase estimates of oscillating transient signals in high noise levels. Estimation of relative phase information between signals is of interest for direction of arrival estimation, source separation and spatio-temporal decoding in neurology as well as for soundscape analysis. The RVPDE relies on the spectrogram reassignment vectors which contains information of the time-frequency local phase difference between two transient signals. The final estimate, which is robust to high noise levels, is given as the median over the local time-frequency area. The proposed technique is shown to outperform state-of-the-art methods in simulations for high noise levels. A discussion on the statistical distribution of the estimates is also presented, and finally an example of phase difference estimation of visually evoked potentials measured from electrical brain signals is shown.</p>}}, author = {{Keding, Oskar and Sandsten, Maria}}, booktitle = {{30th European Signal Processing Conference, EUSIPCO 2022 - Proceedings}}, isbn = {{9789082797091}}, issn = {{2219-5491}}, keywords = {{EEG; low SNR; oscillating transient signals; phase estimation; time-frequency reassignment}}, language = {{eng}}, pages = {{2271--2275}}, publisher = {{European Signal Processing Conference, EUSIPCO}}, series = {{European Signal Processing Conference}}, title = {{ROBUST PHASE DIFFERENCE ESTIMATION OF TRANSIENTS IN HIGH NOISE LEVELS}}, volume = {{2022-August}}, year = {{2022}}, }