Design and Development of Digital Signal Processor Based Phonocardiogram System

Author

Balasubramaniam, D. ; Nedumaran, D.

Author_Institution

Central Instrum. & Service Lab., Univ. of Madras, Chennai, India

fYear

2010

fDate

9-10 Feb. 2010

Firstpage

366

Lastpage

370

Abstract

This paper presents a real-time and cost effective system for the heart auscultation monitoring and hearing. The system design comprises of a phonocardiographic pre-amplifier circuit with a TMS320C6711 digital signal processor starter kit (DSK) and its associated software. The phonocardiogram signal from the pre-amplifier circuit is acquired through the CODEC input of the DSK and subjected to various signal processing techniques. Frequency analysis and component analysis are performed to identify the normal and pathological heart sound patterns using short time Fourier transform (STFT) and wavelet transform techniques respectively. To study the performance of the system, the analysis of heart sound patterns for various diseases were conducted. Finally the computational efficiency of the system was calculated by comparing the execution time of the algorithms in the proposed DSPPCG (digital signal processor based phonocardiogram) system with the PCPCG (PC based phonocardiogram) system.

Keywords

Fourier transforms; biomedical electronics; digital signal processing chips; patient monitoring; preamplifiers; wavelet transforms; CODEC input; TMS320C6711 digital signal processor starter kit; associated software; computational efficiency; heart auscultation monitoring-hearing; pathological heart sound patterns; phonocardiographic preamplifier circuit; short time Fourier transform; wavelet transform; Circuits; Costs; Digital signal processors; Fourier transforms; Heart; Pattern analysis; Performance analysis; Real time systems; Signal design; Signal processing; Digital signal processor; Heart auscultation; Phonocardiogram; Wavelet Transform;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Acquisition and Processing, 2010. ICSAP '10. International Conference on

Conference_Location

Bangalore

Print_ISBN

978-1-4244-5724-3

Electronic_ISBN

978-1-4244-5725-0

Type

conf

DOI

10.1109/ICSAP.2010.60

Filename

5432355