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Autocorrelation to diagnose faults

fft fourier-transform power-spectral-density autocorrelation

modified yesterday Dan Boschen 13.8k

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Efficient calculation of correlation function every $N^{\rm th}$ point

fft autocorrelation cross-correlation ifft

modified 2 days ago Community♦ 1

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$1/n$ octave complex smoothing

fft audio smoothing

modified Jan 23 at 16:01 Community♦ 1

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How do I find the peak frequency of a wav file in python?

fft python frequency

modified Jan 23 at 8:24 Nair 1

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Removing DC Offset (via removing mean) of input and output signals affects their coherence

matlab fft power-spectral-density normalization coherence

modified Jan 22 at 15:27 Jack 1

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Sense of zeropadding in a time domain

fft fourier-transform frequency-spectrum interpolation zero-padding

answered Jan 22 at 8:13 jomegaA 5

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Use of Tukey window and its effect on a graph

fft window

modified Jan 21 at 9:08 Gideon Genadi Kogan 212

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For SNR calculation, should I use FFT|X+iY| or FFT|R|?

fft

answered Jan 19 at 20:56 Engineer 842

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Periodic Data Modeling

fft periodic least-squares oscillator

modified Jan 19 at 13:25 Priyesh Sharma 11

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DFT - Removing window effect in spectral domain with convolution

fft frequency-spectrum dft convolution

answered Jan 17 at 0:10 elena 51

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How to Match 2 Signals which Are a Shifted and Scaled Version of Each Other

image-processing fft discrete-signals fourier-transform cross-correlation

modified Jan 16 at 18:27 Royi 11.2k

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How to detect overlapping peaks in FFT?

fft peak-detection

modified Jan 16 at 13:30 DamienBradley 153

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Phase difference between signals sampled at different frequencies

fft discrete-signals sampling phase

modified Jan 15 at 20:58 Dan Boschen 13.8k

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Zero padding in frequency domain, any tricks to speedup?

fft convolution zero-padding

answered Jan 15 at 18:57 hotpaw2 29.7k

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