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

Volume

2

fYear

2001

fDate

2001

Firstpage

1896

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2001. Proceedings of the 23rd Annual International Conference of the IEEE

ISSN

1094-687X

Print_ISBN

0-7803-7211-5

Type

conf

DOI

10.1109/IEMBS.2001.1020596

Filename

1020596