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Date   File Tags Downloads
(last 30 days) 		Comments Ratings
05 Oct 2009 Screenshot A Guide to the FFT-2nd Edition Plus A guide to the use of the fft algorithm. Author: Daniele Disco spectral analysis, fast fourier transfor..., fft, signal processing 240 15
  • 4.3
4.3 | 20 ratings
02 Oct 2009 Why use fftshift(fft(fftshift(x))) in Matlab instead of fft(x)? Explain why we use fftshift(fft(fftshift(x))) in Matlab instead of fft(x) Author: Kan Wu fast fourier transfor..., signal processing 132 0
  • 5.0
5.0 | 1 rating
28 Sep 2009 Calibrated Spectral Analysis Simple Fourier Spectral Analysis of sound pressure time record using a calibrated with a calibration Author: Edward Zechmann fourier transform, sound pressure, spectral anslysis, sound, mi, spectral analysis 127 0
16 Aug 2009 Screenshot FFT filter - clean your signals and display results! Perform Fourier transform, filter in frequency domain, reconstruct the signal. Author: Shmuel Ben-Ezra filter, dft, data analysis, fft, fourier, transform 187 0
10 Aug 2009 Screenshot MGWT Identification of protein coding regions using the Modified Gabor-wavelet transform. Author: Jesus Mena identification, protein coding region, bioinformatics, digital signal proces..., fourier, transform 32 0
20 Jul 2009 Screenshot Surrogate time series and fields Algorithms to calculate 1D, 2D and 3D fields with your specified power spectrum and distribution. Author: V. Venema fourier transform, iterative, surrogates, iaaft, stochastic modeling, amplitude 28 1
  • 4.0
4.0 | 1 rating
01 Aug 2008 Screenshot Stationary phase approximation for performing Fourier Transforms Performs a Fourier Transform of a function using the stationary phase approximation Author: Adam Wyatt fourier transform, integration, stationary phase appr..., timebandwidth 112 0
11 Dec 2006 Nonparametric Power Spectrum Estimation With Thresholded Cepstrum A function to nonparametrically estimate the power spectrum via thresholded cepstrum Author: Steve Lutes nonparametric, fourier transform, threshold, power spectrum, spectral analysis, cepstrum 33 5
  • 5.0
5.0 | 1 rating
05 Dec 2006 Radix2 decimation in time 1D fast Fourier transform FFT The function implement the 1D radix2 decimation in time fast Fourier transform FFT algorithm Author: Gylson Thomas spectral analysis, fast fourier transfor... 33 1
  • 4.0
4.0 | 1 rating
21 Sep 2006 Screenshot Airy Function Generator Produces and Airy Pattern Author: Dan Burke solid circle, fourier transform, image, disk, airy function, application 40 1
24 Aug 2006 Waterfall FFT This program calculates the Waterfall FFT of a time history. Author: Tom Irvine fourier transform, fft, spectral analysis, waterfall, signal processing 58 5
  • 4.8
4.8 | 5 ratings
06 Feb 2006 DFT on a specified frequency spectral analysis (amplitude & phase) of recorded time-series data Author: Hongxue Cai spectral analysis, amplitude, phase, signal processing, discrete fourier tran... 157 4
  • 4.66667
4.7 | 3 ratings
27 Dec 2005 Partial Fast Fourier Transform Fast computation of part of an FFT using fractional fourier transform Author: Gerbrand van der Zouw fourier transform, fractional fourier tr..., spectral analysis 54 2
  • 5.0
5.0 | 1 rating
22 Apr 2005 Screenshot zoom FFT This program calculates the zoom FFT of a time history. Author: Tom Irvine zoom fft, spectral analysis, spectral, fast fourier transfor..., signal processing 72 4
  • 3.5
3.5 | 2 ratings
07 Mar 2005 FFT2 optimization Speed up FFT2. Author: Luigi Rosa speed optimization, fft, fft2, filtering, discrete fourier tran... 99 2
12 Jul 2004 Fast Convolution Convolves two extremely large vectors in reasonable time. Author: Stephen McGovern fourier transform, fft, ifft, conv, dft, fast 85 9
  • 4.4
4.4 | 5 ratings
19 May 2004 invspecgram Inverse of MATLAB´s specgram. Author: Alfredo Fernandez fourier transform, invspecgram, specgram, spectral analysis 75 4
  • 3.66667
3.7 | 3 ratings
24 Jul 2003 FastFFT Function A function to calculate frequency amplitudes, optionally makes Bode plots. Author: Rick Auch bode, filter design, fft, filter analysis, plot, hanning 46 7
  • 4.6
4.6 | 10 ratings
12 Jun 2003 fftd.m A dimensionless Discrete Fourier Transform program. Author: Paul Godfrey discrete, spectral analysis, fourier, transform, signal processing 115 5
  • 4.0
4.0 | 8 ratings
10 Jun 2003 fftd Computes the dimensionless fft. Author: Paul Godfrey fft, dimensionless, spectral analysis, fourier, transform, signal processing 124 0
03 Apr 2003 Screenshot MyFFT Script for generating pretty visualizations based on the Fast Fourier Transform of simple objects. Author: . Shawn Mikula fourier transform, gallery, fft, fast fourier transfor..., visualization 26 2
  • 3.0
3.0 | 1 rating
04 Apr 2002 Spectrogram (Short-time FT log magnitude) Computes the Short-time Fourier transform and displays as grayscale image or 3-D surface Author: Sean Fulop shorttime fourier tra..., spectral analysis, timefrequency analysi..., spectrogram 276 14
  • 4.2
4.2 | 15 ratings
16 Jun 2000 ffth.m Half space FFT Author: Paul Godfrey spectral analysis, fourier, transform, fast, half, space 124 0
07 Dec 1998 fftmspec.m Module Spectra of the Fourier Transform Author: Jesus Rojas Zavarce module, spectra, spectral analysis, fourier, transform 14 2
  • 3.5
3.5 | 2 ratings
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