基于sEMG信号的肛门外括约肌多重分形特征
Multifractal characteristics of external anal sphincter based on sEMG signals
摘要：
本文应用多重分形去趋势波动分析方法对直肠癌患者的表面肌电信号进行分析。电活动的肛门外括约肌在不同程度的医疗被认为是。比较了标准MFDFA和基于EMD的MFDFA方法的结果。确定了两个不同的缩放区域。在短时间尺度的区域内，计算出的光谱表现出向更高的值的奇异性指数的两种方法的移位。此外，得到的频谱移向较低的值的奇异性指数的EMD-基于MFDFA。
英文摘要：
This work presents the application of Multifractal Detrended Fluctuation Analysis for the surface electromyography signals obtained from the patients suffering from rectal cancer. The electrical activity of an external anal sphincter at different levels of medical treatment is considered. The results from standard MFDFA and the EMD--based MFDFA method are compared. Two distinct scaling regions were identified. Within the region of short time scales the calculated spectra exhibit the shift towards higher values of the singularity exponent for both methods. In addition obtained spectra are shifted towards the lower values of singularity exponent for the EMD--based MFDFA.
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