Journal of Biomedical Engineering Research (대한의용생체공학회:의공학회지)
- Volume 10 Issue 1
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- Pages.11-16
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- 1989
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- 1229-0807(pISSN)
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- 2288-9396(eISSN)
The Characteristics of Muscle Fatigue of EMG Signal Using the AR Model
AR 모델을 이용한 EMG 신호의 근육피로 특성
Abstract
This paper describes the AR model of EMG signal during maximum voluntary contraction. By comparing the AR coefficients and the reflection coefficients of the AR model with the median frequency of power spectrum, it is proved that muscle fatigue can be measured by the AR and the reflection coefficients. In the estimation procedure of AR model parameter, the autocorrelation method is superior to the covariance method, and it is determined that the optimal order is six. As the muscle becomes fatigue, the median frequency of power spectrum is declined, and the AR coefficient [
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