A Surface EMG signal identification method based on short time fourier transform is presented in this paper.

This paper designs a sort of spectral analyzer utilizing the concept of software defined radio,and find several motheds to solve the window effect of the short time Fourier transform.

Digital image technology was adopted to extract the characteristics of the Morse signal based on a three-dimensional spectrum formed by a short time Fourier transform.

On window parameter selection of short-time Fourier transform with Gaussian window in detection of LFM signals;

The effect of analysis window selecting of short-time Fourier transform to the result of time-frequency analysis spectrum was discussed,and the conclusion that Hanning window has better time-frequency centralizing in analysis was gotten.

It is well known that the short-time Fourier transform (STFT) is a transformation method used for timefrequency analysis of signals.

A Novel STFT of Window Duration Increasing Optimization Based on Instantaneous Frequency;

Real-time Parameter Estimation of Torpedo Homing Signal Based on STFT and its Application

Here, based on the research of time domain and frequency domain properties of EGG, the author applied the STFT method to analyse the EGG on time-frequency domain.

The study explores the relationship between frequency spectra based on short time Fourier transformation (STFT) and Wigner_Ville distribution(WVD).

The analysis of time-frequency short time Fourier transform(STFT) based on noncoherent integration can increase the processing gain of the receiver and its capability of intercepting the nonstationary signals effectively,thus improving the detection performance of the system.