Title :
Application of adaptive time-frequency analysis in cardiac murmurs signal processing
Author :
Haibin, Wang ; Jianqi, Wang ; Guohua, Luo ; Guohui, Zhao ; Ansheng, Ni
Author_Institution :
Dept. of Biomed. Eng., Fourth Mil. Med. Univ., Xi´´an, China
Abstract :
In order to avoid the disadvantage of low resolution of fixed-kernel time-frequency(TF) analysis, adaptive TF analysis is employed to classify cardiac murmurs Including systolic murmur, diastolic murmur. The analysis results of several cases of heart disease with different cardiac murmurs indicate that the TF spectrum based on adaptive cone-kernel distribution is capable to show the power spectrum of cardiac murmurs in TF plane and the dynamic course. The TF resolution is high and the characteristics of different kinds of murmurs is obvious.
Keywords :
acoustic signal processing; adaptive signal processing; bioacoustics; cardiovascular system; medical signal processing; spectral analysis; time-frequency analysis; abnormal regurgitation; adaptive cone-kernel distribution; adaptive time-frequency analysis; cardiac murmurs signal processing; cardiovascular system; diastolic murmur; heart auscultation; heart disease; power spectrum; systolic murmur; Adaptive signal processing; Biomedical engineering; Biomedical signal processing; Cardiac disease; Cardiovascular system; Kernel; Pathology; Signal analysis; Signal resolution; Time frequency analysis;
Conference_Titel :
Engineering in Medicine and Biology Society, 2001. Proceedings of the 23rd Annual International Conference of the IEEE
Print_ISBN :
0-7803-7211-5
DOI :
10.1109/IEMBS.2001.1020596
