用小波变换对心电图进行分析

Anlysising of ECG on Wavelet Transform Theory

利用小波变换对心电图中的ＱＲＳ波进行定位。传统的信号分析方法傅立叶变换只适于周期的、稳态的信号。心电图往往存在许多随机信号。小波分析具有良好的时频局部化性质，对信号的突变点、奇异点有很好的识别能力，是心电图分折中的有力工具。

This paper introduce a method to detecte the locations of the QRS waves in ECG. The traditional signal analysis method is Fourier analysis and it is only applied to steady and periodically signals. In ECG there are always many stochastic sig-nals. Wavelet analysis has a good effect on processing unsteady signals and is very useful in ECG analysis.