电子学报2016，Vol.44Issue(2)：479-484,6.DOI:10.3969/j.issn.0372-2112.2016.02.032
基于样本熵的肌电信号起始点检测研究
An Onset Detection Method for Action Surface EIectromyography Based on SampIe Entropy
摘要
Abstract
Onset detection of action surface electromyography (sEMG)signals is important since it has great impact on the accuracy of subsequent sEMG analysis such as in prosthetic control,human computer interaction and clinical diagnosis and assessment,etc.This study presents a segment onset detection method based on sample entropy.Firstly,sEMG signals are framed by a fixed-length sliding window and the sample entropy of each frame is calculated.Afterwards,adaptive thresh-old is set to determine the starting point.Experimental results demonstrate the feasibility of sample entropy to characterize the switching property of action sEMG signals.Meanwhile,compared to moving average and Teager-Kaiser energy operator,the proposed method has advantages in better anti-jamming ability,not only in suppressing short muscular contraction relaxation intervals,but also in suppressing involuntary background spikes.关键词
肌电/起始点检测/样本熵/TKE算子Key words
electromyography/onset detection/sample entropy/Teager-Kaiser energy operator分类
信息技术与安全科学引用本文复制引用
成娟,陈勋,彭虎..基于样本熵的肌电信号起始点检测研究[J].电子学报,2016,44(2):479-484,6.基金项目
国家自然科学基金 （）
