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updated 4 days ago

Extended DFT by Vilnis Liepins

Program EDFT produce high-resolution N-point DFT for N greater than the length of data vector. (spectral analysis, fft, dft)

Y=inedft(F,fn,tn)

[F,S,Stopit]=edft(X,N,I,W)

[F,S,Stopit]=nedft(X,tk,fn,I,W)

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updated 1 month ago

fshift by Francois Bouffard

Shifts the elements of an array by a (possibly non-integer) given number of elements. (matrices, circular, shift)

fshift.m

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updated 3 months ago

window.m by Aravazhi Anbarasu

Window Function for Signal Processing (signal processing, control design, image processing)

window(win_size,type)

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updated 3 months ago

OSCAR by Jerome Degallaix

An optical FFT code to simulate Fabry Perot cavities with arbitrary mirror profiles (chemistry, physics, fft)

HermitePolynomial(n, x)

LGcoefficient(mat, p, l, lambda, w, curv, gridsize)

LaguerrePolynomial(p, l, x)

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updated 4 months ago

FFT_list.m by Rashmil Dahanayake

Performs a FFT analysis for a signal and lists the magnitudes and phase values. (fft, sub harmonics, thd)

fft_list( signal ,time ,varargin )

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updated 5 months ago

FFT accelerated surface analysis tools package by Andreas Almqvist

FFT accelerated functions for analysing 1D and 2D signals such surface profiles, surfaces and images (data exploration, surface analysis, signal processing)

myconv(z,h)

myconv2(z,h)

myconvper(z,h)

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updated 5 months ago

Signal Segmentation and Modelling by Costas Panagiotakis

Simultaneous Signal Segmentation and Modelling based on Equipartition Principle (signal processing, segmentation, signal segmentation)

getBestSolution(d,filename,N,ignoreChars)

getDistanceFromSignal(Y,mode,S,CRITERION)

getDistanceFromSignalMSEAICBIC(Y,Sapo,Seos,CRITERION,AICB...

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updated 5 months ago

fft_split.m Split the FFT of two real sequences by Patrick Fleischmann

splits the FFT of a sequence x=x1+i*x2 into the FFTs of the real input sequences x1,x2 (signal processing, fft, embedded code)

fft_split(X)

fft_split_tb.m

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updated 5 months ago

FFT-based convolution by Bruno Luong

Discrete convolution using FFT method (convolution, conv, conv2)

conv2fft(varargin)

convnfft(A, B, shape, dims, options)

convnfft_install

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updated 6 months ago

A finite cosine wavetrain and its Fourier transform by Sathyanarayan Rao

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

wave_train.m

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updated 7 months ago

Quick & easy smoothing by Damien Garcia

Z = SMOOTH1Q(Y) smoothes data Y using a DCT- or FFT-based spline smoothing method (smoothing, robust smoothing, dct)

smooth1q.m

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updated 8 months ago

Short Time Fourier Transform (STFT) by Hooman Sedghamiz

To visualize the STFT of a signal for further processing (short time fourier tr..., fft, stft)

fft_s.m

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updated 9 months ago

Matlab code for Fast Fourier Tranform (FFT) by Md. Salim Raza

Determination of frequency spectrum for given signal using general and built-in function FFT (fft, ofdm, frequency spectrum an...)

FFT_salim.m

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updated 10 months ago

Fourier Transform application. by Mahmoud

This project demonstrate how to make Fourier transform for input signal. (fft, gui, matlab)

mahmoud_tariq_abu_zayed(varargin)

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updated 10 months ago

to build radially averaged profile of one image by gurgite

for use with circularly symmetric FFT images (image analysis, afm, sem)

radbase.m

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updated 10 months ago

MatLab Solutions: "Introduction to Digital Signal Processing: A Computer Laboratory Textbook". by Ilias Konsoulas

These files are the MatLab solutions of exercises contained in the above DSP lab textbook. (dsp, digital signal proces..., discrete fourier tran...)

AD_DA(x,Xmin,Xmax,Levels)

conv_DHT(x,y)

conv_DHT2(x,h)

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updated 10 months ago

Low Freq 2D Fourier Transform by Daniel

Produces high resolution 2D Fourier Transform for low spatial frequencies. (fft, 2dfft, fft2)

sft2_low( x, maxFreq, totalLen, duplicate)

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updated 11 months ago

Circular Cross Correlation using FFT by Johannes Schmitz

Calculate the circular and non-circular cross correlation using the FFT method. (correlation, crosscorrelation, circular)

cxcorr_fft( a,b )

xcorr_fft( a, b )

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updated 1 year ago

FFT Beam Propagation Method by Edgar Guevara

Implementation of the FFT BPM in different optical waveguides and free space (chemistry, physics, fft)

BPM_2step.m

BPM_Y_Branch.m

BPM_free_space.m

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updated 1 year ago

IEEE 802.16-2004 Wireless-OFDM : WiMax2004 by SBAIH Nizar

this is an approach of IEEE 802.16-2004 standard. (wireless communicatio..., ofdm, signal processing)

WiMax2004

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updated 1 year ago

ejem 1 by Arturo

it's an example of a FFT (fft)

ejem1.m

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updated 1 year ago

Simple Function Generator by Hiroyuki Kato

function "sfg.m" can generate sin,square,duty square,iso triangle,saw tooth,sweep .and fft. (signal processing, control design, mathematics)

sfg(type,t,ff,f0,f1,ana)

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updated 1 year ago

filter4fun by Per Sundqvist

Filtering signal with analytic filter function. Have limitations, but works well. (filter, fft, ifft)

y=filter4fun(fun,t,x)

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updated 1 year ago

Quick Convolution by Chris Turnes

Qconv is a faster alternative to the "conv" function of the SP Toolbox when the inputs are long (fft, signal processing, convolution)

cfft(varargin)

qconv(X, Y, P)

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updated 1 year ago

Filter for discrete time signal by itamar luzon

input: signal, Fs, filter: specific frequency, # of harmonics, shape, width output : a clean signal (fft, filter, signal)

[y_fl, Y_fl, f, Y, f_fl, fl_function, filter]=f4ts(y,Fs,f...

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updated 1 year ago

fast Fouriertransform by nitin chhabra

test input output (fft)

test_FFT(flag)

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updated 1 year ago

Get harmoniques of a real signal by Azzi Abdelmalek

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

[wc,w0,a0,ak,bk,c0,ck]=get_harmonics(y,pas)

get_harmonics_demo.m

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updated 1 year ago

One-Sided FFT by Aravazhi Anbarasu

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

fft_calc(X,fs)

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updated almost 2 years ago

MRI Partial Fourier reconstruction with POCS by Michael Völker

Fast and robust reconstruction of Cartesian partial Fourier MRI data with POCS (partial fourier, pocs, mri)

pocs( ksp, iter, watchProgress )

pocs_example.m

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updated almost 2 years ago

Audio Equalizer by Grant Lohsen

Modify an input signal to match a given power spectral density. (nsd, psd, audio equalizer)

fEqualizer(Signal, SampleFrequency, struct_PSD)

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updated almost 2 years ago

Short Time Fourier Transform by Hafeez Dhalla

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

X=stft(x,wl,olr,window,alpha)

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updated 2 years ago

Noncontact Speckle-Based Velocity Meter by Sagheb Kohpayeh Araghi

Finding a velocity of substance by using radon transform. (velocity, radon, image)

Johann

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updated 2 years ago

CUDA Convolution filter by Mario Tuerschmann

Convolution of an arbitrary 1D complex signal with an arbitrary filter kernel (cuda, fft, convolution)

CudaConvolution( input_args )

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updated 2 years ago

16 point radix 2 DIF FFT with Hamming window by Denny Hermawanto

Implementation of 16 point radix 2 with Hamming window (fft, hamming)

[y]=fft16_hamming_window(x)

test_hamm_fft16.m

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updated 2 years ago

IFFT using FFT by Denny Hermawanto

Computes IFFT of Signal Spectrum (ifft, fft, signal processing)

myfft16(x);

myifft16(x)

test_ifft.m

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updated 2 years ago

Block Circulant Matrix package for MATLAB by Stephen Forsythe

Allows compact representation of block-circulant matrices and fast operations (*,\,pinv,etc). (blockcirculant, circulant, fast inverse)

BlockCirculant

test_BlockCirculant.m

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updated 2 years ago

Sliding Window Gen and usage with Higuchi Fractal Dimension (windowed HFD) by SUMANTH

SWG() is a multipurpose, segment generation tool based on input, window size, overlap size (higuchi, fractal, dimension)

HFD_LCALC( data,varargin)

SWG( data,W,O )

test.m

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updated 2 years ago

Spectrogram, STFT, with varied kinds of Plots by Shreyes

Plots STFT using line, Stem, Surface, Image. STFT calculation done using in built function (mathematics, statistics, signal processing)

spectrogram_multiplot(plot_type, data, varargin)

spectrogram_multiplot_demo.m

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updated 2 years ago

Discrete Fourier transform Plot by Enrico

Creates a spectral components plot from a signal vector. (measurement, signal processing, fft)

fftplot(varargin)

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updated 2 years ago

Instantaneous FFT by Shreyes

Click on any point in the signal to find the FFT of the surrounding portion of given length. (communications, gui, mathematics)

Inst_FFT(varargin)

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updated 2 years ago

Block Filter using OverLap and Save, with FFT by Nkiruka

A block filter that implements the overlap and save method with FFT (filter, fft, overlap and save)

FFTBlockFilt_1_.m

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updated 2 years ago

FFT for input sequence of any length by Jitendra Dalei

This program can calculate FFT of a sequence of length 2^n, where n < ∞ (fft, signal processing, matrix)

anyinputfft.m

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updated 2 years ago

fft realtime using dit algorithm by Jitendra Dalei

It is done for 32 bit input (fft, dit, dif fft)

fftdit32.m

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updated almost 3 years ago

Live audio stream analyser and voice coach by Steve Lawrence

A program that uses 'analoginput' to create a live audio stream, which is analyzed in real-time. (singing, coach, signal processing)

liveon.m

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updated almost 3 years ago

Calculate the fft by cris

algorithm to determine the fft (fft, algoritmo fft, algorithm of fft)

calc_fft.m

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updated almost 3 years ago

Coaxial Cable Based Digital Communication System Simulator by 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, ...

DigitalTransmissionGUI(varargin)

Sim_EyePat(Br,inpt_vol,coding, ...

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updated almost 3 years ago

Inverse Fast Chebyshev Transform (IFCT) by Allan Peter Engsig-Karup

Inverse Fast Chebyshev Transform (IFCT) for use with pseudospectral methods. (fct, inverste fast chebysh..., pseudospectral)

ifct(uh)

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updated almost 3 years ago

Fast Chebyshev Transform (FCT) by Allan Peter Engsig-Karup

Fast Chebyshev Transform (FCT) for use with pseudospectral methods. (fct, fast chebyshev transf..., pseudospectral)

fct(u)

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updated 3 years ago

fft using dif by sneha

simple if you analyzed butterfly diagrams (dif, diffft, fft)

ditfft.m

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updated 3 years ago

Root Mean Squared by dberm22

This set of two functions returns the root mean squared of any 1-D signal. (rms, frms, root mean squared)

frms( S )

rms( s )

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