Discrete-Time Fourier Series to simulate transient over voltages in power systems

Locally optimized chirplet spectrogram for condition monitoring of induction machines in transient regime

“…A possible solution to avoid this waste of processing power could be to apply the FFT only to this frequency band. Nevertheless, the number of frequency bins generated by FFT is the same as the number of current samples [81]. Therefore, The novel solution proposed in this work consists in using the FFT as the signal processing tool for computing the STFT, taking advantage of its speed, and, at the same time, using the full spectral range [0 -f samp ] for storing all the windows of the dictionary (11) in a single, complex time window.…”