Analysing EMG signals using wavelet and short time fourrier transformation

In this study the electrical activity of the muscle movement is purposed to perceive, examine and to determine it?s spectral analyze. At the perception stage some practical work is executed in a hospital and some EMG measurements are collected from patients. The spectral analysis of the signal is performed by Short Time Fourier Transform (STFT) and Wavelet Transform (WT) and coefficients were obtained. The avarage of wavelet transform from fourier transform (FT) is that it ensure the both time and frequency represantation of a signal which transformation is given. This analysis is done with the aid of PC program that is MATLAB 7.01. With the results of the analysis it is determined that which spektral analysis method is more frequency selective and more usable.