STFT


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STFT

Short Term Fourier Transform
References in periodicals archive ?
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].
Calculation amount of the filtering itself was much smaller and ignorable than STFT and i-STFT.
Figures 5 and 6 show the recovery signal in STFT domain using sparse Bayesian [14] and proposed method, respectively.
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.
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.
Figure 6 shows a fingerprint image enhanced with Yang two-stage algorithm [3], Gabor filter [2], STFT [9] and our algorithm.
STFT analysis showed that within the APAC inflation and deflation cycle there were significant differences between patterns A and B.
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 method.
An improved method based on STFT is proposed in this paper.