Accurate harmonic source identification using S-transform

In real-time, accuracy, fast analysis and low cost are essential. [...]the limitation of previous analysis techniques can be solved by using signal processing techniques such as fast fourier transform (FFT), spectrogram and S-transform [2]. [...]of the FFT limitation, the spectrogram is presented to identify the harmonic source location [28]. [...]both its energy location in the time-frequency representation and its resolution can vary with the window selected [29-32]. [...]these signals are analyzed using S-transform due to obtain the signal parameters in time-frequency representation (TFR) plane.