计算机科学 ›› 2013, Vol. 40 ›› Issue (Z6): 188-191.
李琳,王建辉,顾树生
LI Lin,WANG Jian-hui and GU Shu-sheng
摘要: 表面肌电信号中连续动作信号的有效分段提取是对信号分析和处理的前提,提出了一种改进的肌电信号自动分割方法,为实现康复机器人信号全自动分析奠定了基础。该方法将表面肌电信号窗口能量作为肌肉动作始末点的判决标准,给出初始阈值计算公式。同时结合小波变换技术对非动作信号进行滤波,并根据分割点特征提出分割阈值自动调节方法。实验表明,该方法可以自动分割肌电信号,无需考虑测试者自身因素的影响,无需手工设定初值,分割结果准确,精度较高。
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