一、引言前臂单自由度肌电控制假手,是以肌电信号为信号源的。由于伤残原因、残肢长度和手术情况不同,肌电情况很为复杂。如伤残时间过长、术后残肢肌肉萎缩错位、局部脂肪沉积以及残肢失去效应而废用等原因,有的信号微弱,有的可能出现不拮抗、反向拮抗或交叉混杂拮抗等多种形式,影响肌电假 I. INTRODUCTION The forearm single-degree-of-freedom EMG control hand, EMG signal is the source. Due to disability reasons, the length of the residual limb and the different surgical conditions, the EMG is very complicated. Such as disability for a long time, postoperative dislocation of stump muscle dislocation, local fat deposition and residual limb loss of effect and other reasons, some signal weak, and some may appear non-antagonistic, reverse antagonistic or cross-hybrid antagonist and more Species, the impact of myoelectric false