PID算法控制，算法有滤波和去除噪音的效果，算法提取更多偏差，更为准确-PID control algorithm, the algorithm has the effect of filtering and noise removal algorithm to extract more bias, more accurate

Abstract— with the latest advancements in electronics, several techniques are used for removal of unwanted entities from signals especially that are implied in the most sophisticated applications. The removal of power line interference from m

以离散平稳小波变换的心电信号噪声去除方法为基础，根据噪声的不同来源及其频带分布特点，对变换后的细节信号采用不同的阈值去噪方案。并提出一种基于准则原理的阈值选取方法。经国际标准数据库中验证，试验表明，该方法行之有效-With discrete stationary wavelet transform of ecg signal to noise removal method as the foundation, according to the different sources of noise