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updated 8 months ago

Calibrated Spectral Analysis by Edward Zechmann

Edward Zechmann

Simple Fourier Spectral Analysis of sound pressure time record. (spectral analysis, sound, sound pressure)




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updated 9 months ago

DFT & DCT by Suraj Kamya

Suraj Kamya

DFT and DCT without using inbuilt function for 1-D signal (dct, dft, dsp)


[Xk] =dctu(xn)

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updated 10 months ago

A finite cosine wavetrain and its Fourier transform by Sathyanarayan Rao

Sathyanarayan Rao

This code computes frequency spectrum of a finite cosine wavetrain using MATLAB FFT function. (fft, axis scaling for fft, cosine wavetrain)


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updated 12 months ago

Multiecho enhancement for 2D/3D (N-D) images by Luke Xie

Luke Xie

Enhances images using a weighted sum or MEFIC. (2d, 3d, grayscale)


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updated 1 year ago

Fourier Decomposition Demo by Job


Visualizes how an image can be decomposed (and reconstructed) in 2D sinusoidal waves. (fourier transform, image reconstruction, mri)


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updated almost 2 years ago

Continous Fractional Fourier Transform FrFT by Ashish Soni

Ashish Soni

The FrFT, which is a generalization of the ordinary Fourier transform. (fractional fourier tr..., signal processing, fourier transform)


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updated almost 2 years ago

Get harmoniques of a real signal by Azzi Abdelmalek

Azzi Abdelmalek

Given the signal x(t), the function find a0, ak, bk the amplitudes of cos and sin waves. (fft, fourier transform, harmonics)



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updated almost 2 years ago

One-Sided FFT by Aravazhi Anbarasu

Aravazhi Anbarasu

More intuitive than built in function for simple operations.Useful for repetitive code and plotiing. (data export, data import, communications)


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updated 2 years ago

Short Time Fourier Transform by Hafeez Dhalla

Hafeez Dhalla

Script for computing the short time Fourier transform of 1D signals. (dsp, stft, fft)


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updated 2 years ago

P-Stage Wavelet Compression Tool by Brian Moore

Brian Moore

Performs P-Stage Wavelet Compression on an input image and compares the fidelity of the i/o images. (wavelets, image compression, signal processing)



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updated 2 years ago

Biorthogonal Wavelet Compression Tool by Brian Moore

Brian Moore

Contains numerous functions to generate biorthogonal wavelets and compress grayscale/color images. (wavelets, biorthogonal wavelets, jpeg)




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updated 2 years ago

STFT, Short time fourier transform by Suraj Kamya

Suraj Kamya

Short Time Fourier Transform without using inbuilt function. (stft, fourier transform, short time fourier tr...)


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updated 2 years ago

STFT, MDCT and inverses. Onset and pitch detection by Antoine Liutkus

Antoine Liutkus

Short Time Fourier Transform, MDCT and their inverse. CQT. Onset and Pitch detection. (fourier transform, audio, signal processing)



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updated 2 years ago

FinancialModelling_Ch2_ImpliedVolatility by Kienitz Wetterau FinModelling

Carr-Madan and Lewis pricing methods using FFT for many advanced financial models (finance, stochastic volatility, heston)




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updated 3 years ago

Coaxial Cable Based Digital Communication System Simulator by Iftekhar Tanveer

Iftekhar Tanveer

It is a GUI based MATLAB code to simulate a digital communication system. (signal processing, communications, digital signal)

BERCalc(Br,inpt_vol,coding, ...


Sim_EyePat(Br,inpt_vol,coding, ...

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updated 4 years ago

Geometrical interpretation of the 1-D DFT by Michael Chan

Michael Chan

Demonstrates Professor Grigoryan's illustration of geometrical interpretation of the 1-D DFT. (dft, geometry, visualization)




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updated 4 years ago

Back projections and tensor transform by Michael Chan

Michael Chan

Illustrates back projections and Professor Grigoryan's tensor transform. (tensor, backprojections, splitting signals)




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updated 4 years ago

Fourier transform demonstration by David Young

David Young

An introductory demonstration of the discrete Fourier transform, making use of the fft function. (fourier transform, discrete fourier tran..., fast fourier transfor...)

Introductory Fourier Transform Demonstration

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updated 4 years ago

Quick spectral analysis plots by Matthew


Create quick spectral analysis plots. (signal processing, spectral analysis, fourier transform)

spect(data, K, beta, out_form, samp_freq)

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updated 5 years ago

Frequency-Domain Integration by Charles Rino

Charles Rino

Fourier-Domain integration of a specified function, e.g. frequency versus time to extract phase. (signal processing, fourier transform, demo)




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updated 5 years ago

Surrogate time series and fields by V. Venema

V. Venema

Algorithms to calculate 1D, 2D and 3D fields with your specified power spectrum and distribution. (surrogates, iaaft, iterative)


iaaft_loop_1d(fourierCoeff, sortedValues, initialisationS...


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updated 6 years ago

Stationary phase approximation for performing Fourier Transforms by Adam Wyatt

Adam Wyatt

Performs a Fourier Transform of a function using the stationary phase approximation (integration, stationary phase appr..., fourier transform)

my_SPA(Aw, phiw, w, t, NP, phiw1, phiw2)

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updated 8 years ago

Nonparametric Power Spectrum Estimation With Thresholded Cepstrum by Steve Lutes

Steve Lutes

A function to nonparametrically estimate the power spectrum via thresholded cepstrum (spectral analysis, power spectrum, cepstrum)

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updated 8 years ago

Airy Function Generator by Dan Burke

Dan Burke

Produces and Airy Pattern (application, airy function, generator)

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updated 8 years ago

Waterfall FFT by Tom Irvine

Tom Irvine

This program calculates the Waterfall FFT of a time history. (spectral analysis, waterfall, fft)

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updated 9 years ago

Partial Fast Fourier Transform by Gerbrand van der Zouw

Gerbrand van der Zouw

Fast computation of part of an FFT using fractional fourier transform (spectral analysis, fourier transform, fractional fourier tr...)

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updated 10 years ago

Fast Convolution by Stephen McGovern

Stephen McGovern

Convolves two extremely large vectors in reasonable time. (dsp, fast, convolution)

[y]=fconv(x, h)

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updated 10 years ago

invspecgram by Alfredo Fernandez

Alfredo Fernandez

Inverse of MATLABĀ“s specgram. (spectral analysis, invspecgram, specgram)


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updated almost 12 years ago

MyFFT by . Shawn Mikula

. Shawn Mikula

Script for generating pretty visualizations based on the Fast Fourier Transform of simple objects. (gallery, fft, visualization)

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