Instantaneous Power Spectrum
The need for tools capable of handling non-stationarities in the spectral content of the data was recognized as early as 1946. The Wigner-Ville Distribution (WD) has been extensively used since its introduction in 1948, but suffers from some associated problems (e.g., spectral cross-terms and requir...
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Monterey, California. Naval Postgraduate School
2013
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| Online Access: | http://hdl.handle.net/10945/26003 |
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ndltd-nps.edu-oai-calhoun.nps.edu-10945-260032014-12-10T03:59:53Z Instantaneous Power Spectrum de Oliveira, Paulo M.D. Monica Hippenstiel, Ralph Electrical Engineering The need for tools capable of handling non-stationarities in the spectral content of the data was recognized as early as 1946. The Wigner-Ville Distribution (WD) has been extensively used since its introduction in 1948, but suffers from some associated problems (e.g., spectral cross-terms and requiring the use of analytic signals). An alternative Distribution is proposed, which has its origin in the definition proposed by Page of 'Instantaneous Power Spectrum' (IPS). Its characteristics are examined and, when pertinent, compared to the WD. It is shown to be less sensitive to the problems afflicting the WD, but provides less frequency resolution. The usefulness of a parametric (AR) version is investigated. Some typical test signals are examined, to demonstrate the performance and trade-offs of IPS and its parametric version 2013-01-23T21:55:29Z 2013-01-23T21:55:29Z 1989 Thesis http://hdl.handle.net/10945/26003 ocn227744152 en_US Monterey, California. Naval Postgraduate School |
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NDLTD |
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en_US |
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NDLTD |
| description |
The need for tools capable of handling non-stationarities in the spectral content of the data was recognized as early as 1946. The Wigner-Ville Distribution (WD) has been extensively used since its introduction in 1948, but suffers from some associated problems (e.g., spectral cross-terms and requiring the use of analytic signals). An alternative Distribution is proposed, which has its origin in the definition proposed by Page of 'Instantaneous Power Spectrum' (IPS). Its characteristics are examined and, when pertinent, compared to the WD. It is shown to be less sensitive to the problems afflicting the WD, but provides less frequency resolution. The usefulness of a parametric (AR) version is investigated. Some typical test signals are examined, to demonstrate the performance and trade-offs of IPS and its parametric version |
| author2 |
Hippenstiel, Ralph |
| author_facet |
Hippenstiel, Ralph de Oliveira, Paulo M.D. Monica |
| author |
de Oliveira, Paulo M.D. Monica |
| spellingShingle |
de Oliveira, Paulo M.D. Monica Instantaneous Power Spectrum |
| author_sort |
de Oliveira, Paulo M.D. Monica |
| title |
Instantaneous Power Spectrum |
| title_short |
Instantaneous Power Spectrum |
| title_full |
Instantaneous Power Spectrum |
| title_fullStr |
Instantaneous Power Spectrum |
| title_full_unstemmed |
Instantaneous Power Spectrum |
| title_sort |
instantaneous power spectrum |
| publisher |
Monterey, California. Naval Postgraduate School |
| publishDate |
2013 |
| url |
http://hdl.handle.net/10945/26003 |
| work_keys_str_mv |
AT deoliveirapaulomdmonica instantaneouspowerspectrum |
| _version_ |
1716727095790403584 |