| 付聪李强李博.表面肌电信号采集与降噪处理[J].,2011,11(20):3951-3953 |
| 表面肌电信号采集与降噪处理 |
| Detection and Noise Reduction of Surface Electromyography Signal |
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| DOI： |
| 中文关键词: 表面肌电信号 采集 降噪 |
| 英文关键词: Surface electromyography Detection Noise reduction |
| 基金项目:西南科技大学博士研究基金资助项目（08zx0110） |
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| 中文摘要: |
| 目的：本文以设计的表面肌电(sEMG)信号采集系统为基础，探讨sEMG 信号中的降噪处理问题。方法：结合sEMG 信号的
噪声影响情况，首先利用带通滤波器消除肌电信号频带外噪声，再通过频谱插值法来抑制工频干扰分量，最后使用小波分析方法
来削弱肌电信号频带内噪声。结果：通过对检测sEMG 信号的降噪处理，信号噪声得到明显抑制。结论：所设计采集系统能够获
得满意的sEMG 信号检测效果，所采用降噪方法能够有效提高sEMG 信号的质量。 |
| 英文摘要: |
| Objective: The noise reduction of surface electromyography (sEMG) signal was explored using the designed signal
detection system. Methods: According to the noise influence, the band-pass filter was used to eliminate the low and high frequency
noise, and the spectrum interpolation method was utilized to reduce the power line interference, then, the wavelet analysis algorithm was
applied to attenuate the residual noise. Results: The noise interfere in the detected sEMG signal could be suppressed. Conclusion: The
sEMG signal could be collected using the detection system and the satisfying denoising effect could be acquired. |
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