ANALYSIS OF EMG SIGNALS BY MEANS OF THE MATCHED WAVELET TRANSFORM

The authors apply the wavelet transform to the analysis of EMG signals . Exploiting the fact that, under certain conditions, the signal can b e considered as the sum of scaled and delayed versions of a single pro totype, we have chosen the mother wavelet so as to match the known sha pe of the basic component. Moreover, the input signal has been Shannon interpolated in order to improve the low scale resolution. The result s in terms of MUAP detection and resolution are very encouraging, even in the presence of high levels of noise.