| 一种新的阈值方法在肌电信号消噪中的应用 |
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| 引用本文： | 洪晓明,叶明,孟明.一种新的阈值方法在肌电信号消噪中的应用[J].机电工程,2009,26(10):90-92,98. |
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| 作者姓名： | 洪晓明 叶明 孟明 |
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| 作者单位： | 杭州电子科技大学,智能控制与机器人研究所,浙江,杭州,310018 |
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| 基金项目： | 国家自然科学基金资助项目，教育部新世纪优秀人才支持项目 |
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| 摘 要： | 为了清除表面肌电信号（SEMG）夹杂的噪声,在分析了软阈值法、硬阈值法等常用阈值消噪方法的基础上,提出了一种改进阈值函数的新消噪方法。该阈值消噪方法结合了折中阈值方法与μ律绝对值阈值方法的优点,解决了阈值消噪连续性和恒定误差的问题。SEMG消噪实验结果表明,新消噪方法可取得较好的效果。
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| 关 键 词： | 表面肌电信号 消噪 折中阈值函数 μ律绝对值函数 |
Application of new threshold de-noising method in EMG processing |
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| HONG Xiao-ming,YE Ming,MENG Ming.Application of new threshold de-noising method in EMG processing[J].Mechanical & Electrical Engineering Magazine,2009,26(10):90-92,98. |
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| Authors: | HONG Xiao-ming YE Ming MENG Ming |
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| Affiliation: | ( Institute of Intelligence Control and Robots, Hangzhou Dianzi University, Hangzhou 310018, China) |
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| Abstract: | Aiming at removing surface electromyography（SEMG） noise, a new-threshold de-noising method was put forward, based on analyzing soft-threshold de-noising method and hard-threshold de-noising method and so on. By modifying threshold function, the merits of middle course threshold de-noising method and p. rhythm threshold de-noising method were combined to the new threshold de-noising method, the problems of de-noising continuity and constant error were solved. The test results indicate that the new method can be more effective in de-noising SEMG noise. |
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| Keywords: | surface electromyography（SEMG） de-noising middle course threshold function μ rhythm threshold function |
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