Multitaper Wigner distribution with pre-determined doppler-lag bandwdith and sidelobe suppression
(2010) 18th European Signal Processing Conference (EUSIPCO-2010) 2010. p.1737-1741- Abstract
- Multi taper spectrogram decomposition of the time-lag kernel
of a time-frequency distribution might result in computationally
efficient calculations if the number of multi tapers
to be considered in the spectrogram are small. In this paper,
penalty functions are designed and used in the computation
of multi tapers corresponding to the Wigner distribution
time-lag kernel. The resulting multi taper spectrogram will
approximately fulfill the concentration of the Wigner distribution
but will also suppress the usual Wigner distribution
cross-terms outside a predetermined doppler-lag bandwidth.
The level of the cross-term suppression is determined by... (More) - Multi taper spectrogram decomposition of the time-lag kernel
of a time-frequency distribution might result in computationally
efficient calculations if the number of multi tapers
to be considered in the spectrogram are small. In this paper,
penalty functions are designed and used in the computation
of multi tapers corresponding to the Wigner distribution
time-lag kernel. The resulting multi taper spectrogram will
approximately fulfill the concentration of the Wigner distribution
but will also suppress the usual Wigner distribution
cross-terms outside a predetermined doppler-lag bandwidth.
The level of the cross-term suppression is determined by a
parameter of the penalty function. The proposedmethod uses
a limited number of multi tapers which is determined by the
decided bandwidth. The time-frequency concentration of the
proposed method is compared to other well-known distributions.
The performance for white noise disturbances are also
evaluated. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1761238
- author
- Sandsten, Maria LU
- organization
- publishing date
- 2010
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- host publication
- European Signal Processing Conference
- volume
- 2010
- pages
- 5 pages
- publisher
- European Association for Signal Processing (EURASIP)
- conference name
- 18th European Signal Processing Conference (EUSIPCO-2010)
- conference location
- Aalborg, Denmark
- conference dates
- 2010-08-23 - 2010-08-27
- ISSN
- 2219-5491
- language
- English
- LU publication?
- yes
- id
- 8f48f2e3-984a-45dc-92ec-1f86c70f2115 (old id 1761238)
- alternative location
- http://www.eurasip.org/Proceedings/Eusipco/Eusipco2010/Contents/papers/1569291425.pdf
- date added to LUP
- 2016-04-01 13:13:04
- date last changed
- 2018-11-21 20:13:43
@inproceedings{8f48f2e3-984a-45dc-92ec-1f86c70f2115,
abstract = {{Multi taper spectrogram decomposition of the time-lag kernel<br/><br>
of a time-frequency distribution might result in computationally<br/><br>
efficient calculations if the number of multi tapers<br/><br>
to be considered in the spectrogram are small. In this paper,<br/><br>
penalty functions are designed and used in the computation<br/><br>
of multi tapers corresponding to the Wigner distribution<br/><br>
time-lag kernel. The resulting multi taper spectrogram will<br/><br>
approximately fulfill the concentration of the Wigner distribution<br/><br>
but will also suppress the usual Wigner distribution<br/><br>
cross-terms outside a predetermined doppler-lag bandwidth.<br/><br>
The level of the cross-term suppression is determined by a<br/><br>
parameter of the penalty function. The proposedmethod uses<br/><br>
a limited number of multi tapers which is determined by the<br/><br>
decided bandwidth. The time-frequency concentration of the<br/><br>
proposed method is compared to other well-known distributions.<br/><br>
The performance for white noise disturbances are also<br/><br>
evaluated.}},
author = {{Sandsten, Maria}},
booktitle = {{European Signal Processing Conference}},
issn = {{2219-5491}},
language = {{eng}},
pages = {{1737--1741}},
publisher = {{European Association for Signal Processing (EURASIP)}},
title = {{Multitaper Wigner distribution with pre-determined doppler-lag bandwdith and sidelobe suppression}},
url = {{http://www.eurasip.org/Proceedings/Eusipco/Eusipco2010/Contents/papers/1569291425.pdf}},
volume = {{2010}},
year = {{2010}},
}