中文说明：可以去除50Hz公频干扰的陷波器matlab程序，还有中值滤波，滑动平均滤波程序。还有2点差分，3点差分和5点差分程序。可以较好地去除生物医学信号比如脉搏波信号及心电信号的噪声。
English Description：
Can remove 50 Hz common frequency interference notch filter matlab program, there are median filter, moving average filter program. There are also 2-point difference, 3-point difference and 5-point difference programs. It can remove the noise of biomedical signal such as pulse wave signal and ECG signal.