As done with the impedance calculation, STFT
is used to calculate FFT on a traveling window as it transitions through the entire data.
For example, the Wigner Ville distribution would cause cross-term interference when dealing with the multi component signals; the analysis window of STFT
is fixed; the WT has been well applied in fault diagnosis [5, 6] but different mother wavelets should be predefined for each component [7-11].
In this paper, an adaptive method is proposed that provides an effective framework of switching between STFT
for narrow band and CQT for wide-band signals, after analyzing the input signal.
Figures 5 and 6 show the recovery signal in STFT
domain using sparse Bayesian  and proposed method, respectively.
Calculation amount of the filtering itself was much smaller and ignorable than STFT
El resto de este articulo continua de la siguiente forma: en la seccion 2 se presenta la estructura matematica y la relacion existente entre la STFT
y la LPFT.
analysis showed that within the APAC inflation and deflation cycle there were significant differences between patterns A and B.
Figure 6 shows a fingerprint image enhanced with Yang two-stage algorithm , Gabor filter , STFT
 and our algorithm.
Notese que la STFT
es periodica en [lambda] con periodo 2[pi].
Figure 9-3D (Time--Frequency--Ampitude) distribution according to STFT
using optimal window size N=64
Therefore it is sufficient to implement only WPT based denoising technique without adding STFT
An improved method based on STFT
is proposed in this paper.