肌电信号处理和肌电控制的研究

The research of the Process and Control of the Electromyography Signal

根据肌肉收缩力量的大小与运动神经纤维传出动作电位的频率有的特征,通过数据卡采集表面肌电信号,进行放大、滤波等处理,然后提取特征进行分析处理。在分析比较了各种特征提取方法的优缺点后,采用了功率谱法对肌电信号进行特征提取,并通过labview计算功率谱中最大值左右一定范围内的能量所占整个功率谱能量的比值K,根据K值来判断该肌电信号属于何种动作。

Based on the character of the frequency of the neural fiber is correlation to the power of the muscle's shrink,so we pick-up the character of the electromyography by power spectrum character extract method. This method can calculate the energy E1 that is nearby the maximum value of the power spectrum and the energy E2 that is the whole energy of the power spectrum, and then calculate K=E1/E2 as the character of the SEMG,then judge the information belong to which action by the value of K.