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FFT results are repeating?

fft discrete-signals signal-analysis audio audio-processing

modified 2 days ago Mehmet Dogan 111

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3

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865

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Understanding FFTs for simple Sin / Cos

fft frequency-spectrum phase amplitude magnitude

modified 2 days ago teeeeee 492

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165

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Inverse FFT of complex exponential with time delay - window leakage?

matlab fft discrete-signals ifft

modified 2 days ago Community♦ 1

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339

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fft signal-analysis noise python overlap-add

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fft dft ifft inverse-problem

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Why do I have a high peak at the beginning of my FFT (not DC)?

fft

modified Sep 24 at 15:33 Dan Boschen 21.1k

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window function between program and math

fft python window-functions

answered Sep 24 at 15:27 Dan Boschen 21.1k

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fft python algorithms eeg numpy

modified Sep 24 at 7:58 NeoChiri 101

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Audio Activity Detection and Classification

fft mfcc classification audio-processing sound-recognition

answered Sep 23 at 20:31 jonnor 163

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Is spectral density sometimes normalized by sampling rate rather than bin size?

fft sampling power-spectral-density

modified Sep 23 at 14:11 Dan Boschen 21.1k

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2D-DWT viewpoint compared to DWT

fft 2d dwt

asked Sep 22 at 10:32 CD86 133

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What is the point of smoothing an FFT or spectral density plot, and how does that affect the noise floor?

fft noise power-spectral-density smoothing

modified Sep 21 at 14:11 V.V.T 505

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

fft autocorrelation cross-correlation ifft

modified Sep 20 at 12:04 Community♦ 1

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FMCW Radar - Range-Doppler Plot

fft radar mimo

modified Sep 20 at 9:58 Envidia 864

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