说明：  表面肌电信号是肌肉收缩时伴随的电信号，是在体表无创检测肌肉活动的重要方法。由于设备采集到的肌电信号会受到环境噪声等影响，因此在进一步分析之前需要对采集的肌电信号进行去噪处理。 设计一种传统滤波器（如Buttterworth）和现代滤波器（Kalman）对所采集的肌电信号进行处理，并比较各个肌肉的做功比。
(Surface emg signal is the concomitant signal of muscle contraction and is an important noninvasive method to detect muscle activity on the body surface. Because the electromyographic signals collected by the equipment will be affected by environmental noise, it is necessary to de-noise the collected electromyographic signals before further analysis. A traditional filter (such as Buttterworth) and a modern filter (Kalman) are designed to process the collected emg signals and compare the work ratio of each muscle.)