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在医用领域,上肢肌电信号研究为上肢损伤医治方法提供了科学有效的数据,在实际应用中,由于表面肌电信号十分微弱,同时,脑电信号、检测仪器等各类噪声与未知因素的存在与影响,使得肌电信号的提取工作尤为艰难,采用全新的小波变换分析方法,对采集到的肌电信号进行降噪处理,利用Matlab对不同频段的肌电信号进行不同阈值的降噪处理并达到较好效果,具有很好的实用性。
In medical field, the study of upper limb EMG provides scientific and effective data for the treatment of upper limb injuries. In practical applications, due to the very weak surface EMG signal, various types of noise and unknown factors such as EEG signals and detection instruments The EMG signal extraction work is particularly difficult, using a new wavelet transform analysis method, the collected EMG signal to noise reduction processing, the use of different bands of different EMG signals with different threshold noise reduction And achieve better results, with good practicality.