摘要
表面肌电信号是肌肉收缩时的电变化在皮肤表面的综合反映 .根据表面肌电信号 ( EMG)属于短数据量的时间序列的特点 ,提出了利用替代数据方法对 EMG信号的动力学特性进行分析 .研究表明 ,EMG信号是非噪声的确定性信号 ,并具有确定性的非线性特性 。
The surface electromyograph(EMG) signals (SEMGs) are a complex interference pattern of the electrical activity during muscle contraction. Since the surface EMG signals are short time series, it was proposed using the surrogate data to analyze dynamic property of EMG signal. The results show that EMG data is non noisy and has determinate nonlinearity. This paper provides an objective basis for the further analysis of chaos dynamic feature of the surface EMG signal.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
2000年第11期1594-1597,共4页
Journal of Shanghai Jiaotong University
基金
国家自然科学基金资助项目! ( 696750 0 2 )
关键词
表面肌电信号
非线性检验
替代数据
信号分析
surface electromyograph signal
nonlinearity test
surrogate data
nonlinearity
