Comparison of time-frequency analysis performance on hearts and murmurs
Time-frequency analysis is one of the methods to deal with non-stationary and time-varying signal such as heart sounds and murmurs. Wigner-Ville distribution (WVD) is a popular tool to obtain time-frequency representation of signal. Windowed Wigner-Ville distribution (WWVD) and smooth windowed Wigne...
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| Format: | Article |
| Language: | en |
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2003
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| Online Access: | http://eprints.utm.my/1960/1/AhmadZuriShaameri2003_ComparisonOfTimeFrequencyAnalysisPerformance.pdf http://eprints.utm.my/1960/ |
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| author | Daliman, Shaparas Sha'ameri, Ahmad Zuri |
| author_facet | Daliman, Shaparas Sha'ameri, Ahmad Zuri |
| author_sort | Daliman, Shaparas |
| building | UTM Library |
| collection | Institutional Repository |
| content_provider | Universiti Teknologi Malaysia |
| content_source | UTM Institutional Repository |
| continent | Asia |
| country | Malaysia |
| description | Time-frequency analysis is one of the methods to deal with non-stationary and time-varying signal such as heart sounds and murmurs. Wigner-Ville distribution (WVD) is a popular tool to obtain time-frequency representation of signal. Windowed Wigner-Ville distribution (WWVD) and smooth windowed Wigner-Ville distribution (SWWVD) are the improvement method to overcome the problem faced by WVD. Determination of parameter setting of WWVD and SWWVD eliminates the cross-terms and improve time-frequency representation. The accuracy of time-frequency representation of simulated heart sounds and murmurs are compared and determined based on the mainlobe width, peak-to-sidelobe average ratio and signal-to-interference ratio. It is found that the most accurate time-frequency representation can be obtained using the SWWVD. |
| format | Article |
| id | my.utm.eprints-1960 |
| institution | Universiti Teknologi Malaysia |
| language | en |
| publishDate | 2003 |
| record_format | eprints |
| spelling | my.utm.eprints-19602017-10-23T07:29:43Z http://eprints.utm.my/1960/ Comparison of time-frequency analysis performance on hearts and murmurs Daliman, Shaparas Sha'ameri, Ahmad Zuri TK Electrical engineering. Electronics Nuclear engineering Time-frequency analysis is one of the methods to deal with non-stationary and time-varying signal such as heart sounds and murmurs. Wigner-Ville distribution (WVD) is a popular tool to obtain time-frequency representation of signal. Windowed Wigner-Ville distribution (WWVD) and smooth windowed Wigner-Ville distribution (SWWVD) are the improvement method to overcome the problem faced by WVD. Determination of parameter setting of WWVD and SWWVD eliminates the cross-terms and improve time-frequency representation. The accuracy of time-frequency representation of simulated heart sounds and murmurs are compared and determined based on the mainlobe width, peak-to-sidelobe average ratio and signal-to-interference ratio. It is found that the most accurate time-frequency representation can be obtained using the SWWVD. 2003-08-25 Article PeerReviewed application/pdf en http://eprints.utm.my/1960/1/AhmadZuriShaameri2003_ComparisonOfTimeFrequencyAnalysisPerformance.pdf Daliman, Shaparas and Sha'ameri, Ahmad Zuri (2003) Comparison of time-frequency analysis performance on hearts and murmurs. Research and Development, 2003. SCORED 2003. Proceedings. Student Conference on . pp. 1-4. |
| spellingShingle | TK Electrical engineering. Electronics Nuclear engineering Daliman, Shaparas Sha'ameri, Ahmad Zuri Comparison of time-frequency analysis performance on hearts and murmurs |
| title | Comparison of time-frequency analysis performance on hearts and murmurs |
| title_full | Comparison of time-frequency analysis performance on hearts and murmurs |
| title_fullStr | Comparison of time-frequency analysis performance on hearts and murmurs |
| title_full_unstemmed | Comparison of time-frequency analysis performance on hearts and murmurs |
| title_short | Comparison of time-frequency analysis performance on hearts and murmurs |
| title_sort | comparison of time-frequency analysis performance on hearts and murmurs |
| topic | TK Electrical engineering. Electronics Nuclear engineering |
| url | http://eprints.utm.my/1960/1/AhmadZuriShaameri2003_ComparisonOfTimeFrequencyAnalysisPerformance.pdf http://eprints.utm.my/1960/ |
| url_provider | http://eprints.utm.my/ |