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Time-frequency analysis of heart sounds and murmurs

Daliman, Shaparas and Sha'ameri, Ahmad Zuri (2003) Time-frequency analysis of heart sounds and murmurs. In: ICICS-PCM 2003, 15-18 December 2003, Singapore.

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Abstract

Heart sounds and murmurs are timevarying signals that would best be analyzed using timefrequency analysis. Windowed Wigner-Ville distribution (WWVD) and smooth windowed Wigner-Vffle distribution (SWWVD) are used to obtain the timefrequency representation of the signal. Determination of parameter setting of WWVD and SWWVD will eliminate the cross-terms and improve time frequency representation. The accuracy of timefrequency representation will be determined based on the mainlobe width and signal-to-interference ratio. It is found that the most accurate timefrequency representation can be achieved using the SWWVD.

Item Type:Conference or Workshop Item (Paper)
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:2118
Deposited By: Dr Zaharuddin Mohamed
Deposited On:26 Mar 2007 00:53
Last Modified:01 Feb 2012 07:26

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