Design of heart sound processing analog circuit based on the electret capacitor microphone;

Implementation of serial communication between personal computer and C8051F000 in sampling of heart sound;

Study on the signification and method of heart sound recognition;

Development of heart sounds teletransmission system based on GPRS;

Time-frequency analysis of heart sounds based on continuous wavelet transform;

The study of the noninvasive detection system of early coronary artery disease based on neural networks and the application of wavelet transform to heart sounds;

Data recall and analysis system of heart sounds and ECG signal based on LabVIEW;

In the course of recording heart sound, it is inevitable that many kinds of noise will be merged in the main signal.

In process of recording heart sound,it is inevitable that many kinds of noise will be merged in the main signal.

Phonocardiogram exercise test and cardiac function classification;

An Analysis of Precision and Accuracy of the Phonocardiogram Exercise Test;

Phonocardiogram contains a lot of information on the physiological and pathological cardiac function, so it can improve the diagnosis and treatment of cardiovascular disease to effectively diagnose cardiac sounds.