对信号进行小波分解，用硬阈值方法去除噪声，进而提高精度-right signal wavelet decomposition, with a hard threshold to remove noise, and to improve accuracy

正弦信号加白噪信号，对叠加信号进行延拓并进行一维小波分解，重构逼近信号和细节信号并显示。-Sinusoidal signal with white noise signal, superimposed signals of continuation and the one-dimensional wavelet decomposition and reconstruction approximation signal and detail signal and displayed.

小波分解与小波重构一些列工具的matlab源码例子。是mit某实验员用来进行心电信号处理的。-Wavelet decomposition and wavelet reconstruction of some of the matlab source code examples of the column. MIT is a laboratory technician used for ECG signal processing.