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.
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|
|Deposited By:||Dr Zaharuddin Mohamed|
|Deposited On:||26 Mar 2007 00:53|
|Last Modified:||01 Feb 2012 07:26|
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