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updated 3 years ago

Moving averages / Moving median etc by Aslak Grinsted

Calculates moving averages (or median/fun) of a timeseries. (time frequency, wavelets, moving averages)

[y]=moving(x,m,fun)

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updated 3 years ago

continuous wavelet transform and inverse by jon erickson

Continuous wavelet transform (CWT) and Inverse CWT for reconstructing original signal. (time frequency, wavelets, cwt)

...

...

invcwt.m

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updated 3 years ago

Toolbox Sparse Optmization by Gabriel Peyre

Optimization codes for sparsity related signal processing (time frequency, wavelets, sparsity)

Basis Pursuit Denoising with Forward-Backward

Basis Pursuit with Douglas Rachford

Constrained Total Variation Projection with ADDM

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updated 4 years ago

Vuvuzela sound denoising algorithm by Choqueuse Vincent

This script implements a sound denoising algorithm in Matlab for vuvuzela sound cancelation. (audio, denoising, boll)

vuvuzela_denoising.m

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updated 4 years ago

Filter Bank by Avinash Parnandi

Filter bank implementation in matlab. (filter bank, filter_bank, bandpass)

filter_bank.m

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updated almost 5 years ago

Filter Coefficients to Popular Wavelets by Pascal Getreuer

Reference of wavelet filter coefficients and lifting scheme implementations. (time frequency, wavelets, daubechies)

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updated 5 years ago

A Numerical Tour of Signal Processing by Gabriel Peyre

A set of Matlab experiments that illustrates advanced computational signal and image processing. (time frequency, wavelets, tutorial)

[p,ellipse]=phantom(varargin)

b=dct(a,n)

b=dct2(arg1,mrows,ncols)

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updated 5 years ago

Toolbox Wavelets by Gabriel Peyre

Wavelet transform and coding functions, including other more exotic transforms (laplacian, steerable (time frequency, wavelets, multiresolution)

Toolox Wavelets - A Toolbox for Multiscale Signal and Ima...

apply_tensorial.m

clamp.m

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updated 5 years ago

Toolbox Wavelets on Meshes by Gabriel Peyre

A toolbox to compute wavelet transform on 3D meshes (time frequency, wavelets, spherical wavelets)

Toolbox Wavelets on Meshes - A Toolbox for Multiscale Pro...

check_face_vertex(vertex,face, options)

clamp.m

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updated 5 years ago

adaptive time frequency analysis by Deming Zhang

A time frequency analysis programm and a matlab UI (time frequency, wavelets, time frequency analys...)

tfagui(varargin)

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updated 6 years ago

Relative Wavelet Energy by Guan Wenye

a program calculates Relative wavelet energy with brief tutorial (time frequency, wavelets, relative wavelet ener...)

[yout]=sum_rela(c,l,N1)

output1=relative_energy1(x,interval,levels)

y=relative_energy(DATA)

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updated 6 years ago

Lomb (Lomb-Scargle) Periodogram by Dmitry Savransky

Computes the Lomb normalized periodogram (spectral power as a function of frequency). (time frequency, wavelets, lomb lomb)

lomb(t,h,ofac,hifac)

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updated 6 years ago

Frequency, amplitude, phase and mean value of sine wave by Miroslav Balda

The function sinfapm evaluates parameters of sampled sine wave (time frequency, wavelets, sampled sine wave)

sinfapm(x,fs,varargin)

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updated 6 years ago

Remove_Annual by Tony Sturges

Removes the power at 12.0 mo and harmonics (time frequency, wavelets, spectrum)

dopgram.m

rmvannual.m

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updated 6 years ago

changeSampleFreq by Cornelis P. Bogerd

Easily change the sample frequency of a data-set (time frequency, wavelets, sample frequency)

changeSampleFreq(dataOld, freqOld, freqNew, qFilter, qPlo...

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updated 6 years ago

Comparing Time Series using Semblance Analysis by Gordon Cooper

This program shows the correlation between two datasets as a function of both time and wavelength. (time frequency, wavelets, crosscorrelation)

s=semblance(t,y1,y2,nscales)

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updated 6 years ago

the fft file by myself by yuan baofeng

fft (time frequency, wavelets, fft)

zjfft.m

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updated almost 7 years ago

WSEdecomp by Guillaume MAZE

Stationnary/Propagative components decomposition of a Longitude/Time signal with Fourier harmonics (time frequency, wavelets, fft)

WSEdecomp(S,DT,DX,varargin)

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updated almost 7 years ago

findSteadyState by Cornelis P. Bogerd

Finds periods of steady state within a data-set, and returns the start index and average of these st (time frequency, wavelets, steady state)

findSteadyState(dataX, Tsteadystate, Sstep, SampleTime, s...

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updated almost 7 years ago

Calculating Beat rate of heart by DWT by ehsan mirrahimi

Beat rate of an ECG signal (time frequency, wavelets, wavelet)

ECG.m

PhysioNet_ECG_Exporter_2.m

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updated 7 years ago

SimuWave by Francois Chaplais

A Simulink wavelet library (time frequency, wavelets, wavelets simulink)

DerivFilter(h,g,rh,rg)

FIR(t,x,u,flag,f,lu)

MakeFilter(WaveType,m,n,disp)

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updated 7 years ago

Normalised Partial Energy Sequence by Adam Auton

Calculate the Normalised Power Energy Sequence for a given vector (time frequency, wavelets, npes wavelets)

npes( X )

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updated 7 years ago

Adaptive Optimal Kernel by Tony Reina

An Adaptive Optimal-Kernel Time-Frequency Representation (time frequency, wavelets, ambiguity)

fft_tfr(n,m,x,y)

mklag(nrad,nphi,nlag,iphi,jrad)

plagmake(nrad, nphi, nlag)

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updated 7 years ago

Numerical differentiation based on wavelet transforms by Jianwen Luo

Numerical differentiation based on wavelet transforms (CWT and DWT) (time frequency, wavelets, wavelet)

dudx=derivative_cwt(u,wt_name,wt_scale,dx,trt_flag)

dudx=derivative_dwt(u,wt_name,wt_level,dx,trt_flag)

spline_scale_function(varargin)

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updated 8 years ago

2-D lifting wavelet transform by Wang Tianhui

Self-contained 2-D image decomposition and reconstruction based on lifting wavelet algorithm (time frequency, wavelets, cdf 97)

colwavelift(x, optx, L, direction, mode)

wavelift(x, nlevel, wname)

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updated 8 years ago

CDF 9/7 Wavelet Transform by Wang Tianhui

2-D image decomposition and reconstruction with cdf 9/7 wavelet proposed in jpeg2000 (time frequency, wavelets, cdf)

wavecdf97(x, nlevel)

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updated 8 years ago

MultiWavelet Tools by Bessam Al-Jewad

MultiWavelet computation using the matrix method (time frequency, wavelets, multiwavelet)

Y=dd2(x)

[P,Q]=MWS(wavnam)

a=IGHM(b)

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updated almost 9 years ago

Amplitude Modulation by Saurav R Tuladhar

Time and Frequency domain representation of AM. (dsb, dsbsc, ssb)

amtf.m

ssb.m

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updated almost 10 years ago

Wavelets Based Denoising by Sheraz Khan

This program shows wavelets based denoising of audio file and arbitrary signals. (time frequency, wavelets, denoising)

HardTh(y,thld)

SoftTh(y,thld)

Wavelet_Denoise(varargin)

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updated 10 years ago

Angle and Frequency plots of IQs by Nate Melster

function [f,a] = iqtofreqplot(x,freq) (time frequency, wavelets, iq frequency plot)

iqtofreqplot(x,freq);

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updated 10 years ago

Get I and Q by Nate Melster

function y = getiq('data', 'rate at which calculated per second, 'center frequency') (time frequency, wavelets, iq)

getiq(x,freq,fc)

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updated almost 11 years ago

2-sided Zmod by Izhak Bucher

Shows a bi-directional spectrogram of a whirling shaft. (time frequency, wavelets, rotating machinery)

show_2sided.m

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updated 15 years ago

wave_cov by B.J. Whitcher

A series of files that perform univariate and bivariate wavelet analysis of discrete time series. (time frequency, wavelets, wavelet)

dwt_dbp(X, wavelet, nlevels, boundary)

modwt_brick_wall(X, wavelet, N)

modwt_dbp(X, wavelet, nlevels, boundary)

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updated 15 years ago

inter_patt.m by Farhad Aslani

A simple animation of two wavelets which interfere. (time frequency, wavelets, wavelet)

inter_patt.m

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updated almost 16 years ago

osprey by Dave Mellinger

Osprey is a program for viewing and printing spectrograms of sound files. (time frequency, wavelets, spectrograms)

EM(P)

aiffchunk(filename, typ, start, nframe, chans, fmt)

aiffwrite(file, x, sRate)

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updated 16 years ago

treewave by Bulent Tavli

Tree structured wavelet transform of the input matrix, up to the given level of decomposition. (time frequency, wavelets, tree)

[gout]=wav2(gr1,level)

[out]=wav1(inp)

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