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updated 8 months ago

Inverse Short-Time Fourier Transformation (ISTFT) with Matlab Implementation by Hristo Zhivomirov

Time-Frequency resynthesis via Inverse Short-Time Fourier Transformation (ISTFT) (signal processing)

istft(stft, h, nfft, fs)

stft(x, wlen, h, nfft, fs)

Resynthesis.m

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updated 8 months ago

Infrared Image Software (IRIS) by Kevin Hellemans

FTIR Image Data Processing (ftir, gui, chemistry)

CLUSTERWINDOW (varargin)

CMEANSWINDOW (varargin)

IRIS.m

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updated 9 months ago

Signal Processing with MATLAB Webinar by Kirthi Devleker

Contains code Snippets used in the Webinar (signal processing)

delayCompensationPlot( tn,xn,xfilter, xfiltfilt)

plotEKGPSD(varargin)

plotSig( num, sigData, titleString )

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updated 9 months ago

Time-Frequency Analysis of Non-Stationary Signals with Matlab Implementation by Hristo Zhivomirov

Time-frequency analysis of non-stationary signals in time, frequency and time-frequency domain (signal processing, spectral analysis)

spectrum(x, fs, varargin)

stft(x, wlen, h, nfft, fs)

Time_Frequency_Analysis.m

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updated 9 months ago

rtl-sdr: multi-dongles based flexible spectrum scanner by Xianjun Jiao

Multi-dongles scanner with configurable parameters: start-end frequency, RBW, num of dongles, etc. (rtlsdr, software defined radi..., spectrum scanner)

raw2iq(a)

set_freq_tcp(tcp_obj, freq)

set_gain_tcp(tcp_obj, gain)

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updated 9 months ago

rtl-sdr: multi-dongles based GSM FCCH scanner by Xianjun Jiao

Multi-dongles parallel GSM FCCH scanner to help you find GSM broadcasting carrier quickly! (rtlsdr, rtl_tcp, gsm)

FCCH_coarse_position(s, decimation_ratio)

move_fft_snr_runtime_avg(s, mv_len, fft_len, th)

raw2iq(a)

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updated 9 months ago

Image Denoising based on Non Local-means Filter and its Method Noise Thresholding by Shreyamsha Kumar B. K.

Image details that are removed by NL-means filter is added back after wavelet thresholding (non localmeans filter, bilateral filter, method noise)

[g_all, vv_all]=vifsub_est_M(org,dist, subbands, M);

[ssarr, l_arr, cu_arr]=refparams_vecgsm(org,subands,M)

bayesthf(y,noise_var)

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updated 9 months ago

Short-Time Fourier Transformation (STFT) with Matlab Implementation by Hristo Zhivomirov

Time-Frequency analysis via Short-Time Fourier Transformation (STFT) (signal processing, spectral analysis)

stft(x, wlen, h, nfft, fs)

example.m

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updated 9 months ago

DSP System Toolbox Support Package for ARM Cortex-M Processors by MathWorks DSP System Toolbox Team

Support package install file that works with the ARM Cortex-M CMSIS Library (arm, microcontroller, embedded programming)

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updated 9 months ago

Short-time Energy and Zero Crossing Rate by Nabin S Sharma

Compute the short time energy (STE) and short-time zero crossing rate (STZCR) of a signal. (signal processing, speech processing, shorttime energy)

energy(x,wintype,winamp,winlen)

sgn(x)

winconv(x,varargin)

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updated 9 months ago

choose 2 fwav file from database by su

I only want to choose 2 wav file from path out of 10 wav file. (dsp, audio processing, signal processing)

out=load_database();

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updated 10 months ago

beam pattern by Partha Pratim Basumallick

analyses the pattern of a beam (image processing)

beampattern.m

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updated 10 months ago

Trainable COSFIRE filters for keypoint detection and pattern recognition by George Azzopardi

A COSFIRE filter detects features or patterns of interest, e.g. traffic signs in complex scenes. (cosfire, keypoint, feature)

COSFIRE_Application(example)

Gabor(img, lambda, aspectratio, bandwidth, orientation, s...

Parameters(type)

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updated 11 months ago

Two-dimensional trilateral filter by Pekka Astola

Filters a grayscale image with the trilateral filter by P. Choudhury and J. Tumblin (trilateral filter, bilateral filter, filtering)

BilateralGradientFilter(...

DetailBilateralFilter(inputImage,adaptiveRegion,...

buildMinMaxImageStack(gradientMagnitude,maxLevel)

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updated 11 months ago

Continuous Sound and Vibration Analysis by Edward Zechmann

This program analyzes sound and vibrations data using metrics for continuous noise and vibrations. (dsp, sound, vibrations)

ACdsgn(Fs)

ArgStruct=parseArgs(args,ArgStruct,varargin)

D=Data

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updated 11 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 12 months ago

Fast Filter Bank Design (ffbd) by Iman

This function can be used to design uniform and non-uniform filter banks. (filter bank design, uniform filter bank, nonuniform filter ban...)

A=A_gerenator_vector_input(x_column_vector,Beta,Sigma_dic...

Beta=Beta_dictionary(M,nk)

M=Find_LCM(x)

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updated 1 year ago

Generation of Audio Test Signals with Matlab Implementation by Hristo Zhivomirov

Generation of sine wave, square wave, chirp, sinc, white and pink noise via sound card. (measurement, signal processing)

AOChirpRepeate(f1, f2, Fs, endtime, r, p)

AOPinkNoiseRepeate(Fs, endtime, r, p)

AOSincFullRepeate(f0, Fs, endtime, r, p)

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updated 1 year ago

Image fusion based on pixel significance using cross bilateral filter by Shreyamsha Kumar B. K.

Fuses multifoucs and multispectral images by weighted average using the weights computed from CBF. (image fusion, pixel significance, multifocus)

[QABF,LABF,NABF,NABF1]=objective_fusion_perform_fn(xrcw,x)

[gv gh]=sobel_fn(x)

[hist_out]=imhist_fn(x)

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updated 1 year ago

A Synchronized Mil-Std-188-110B Receiver by Dick Benson

Extends the shipping "188" modem. Features a synchronized 1200 bps / short interleave receiver. (communications, synchronization, equalizer)

example_sel2html(fn,new,Click_Sensed)

mil_188_gui(varargin)

mil_std_188110b_initmask_ship(block)

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updated 1 year ago

ATSC: From RF to Video by Dick Benson

A set of models to process an ATSC RF signal and output an MPEG II video transport stream. (atsc, video, advanced television s...)

dspblkadpt_old(action)

example_sel2html(fn,new,Click_Sensed)

atsc.m

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updated 1 year ago

High Speed ADC Models by Dick Benson

Interleaved, Successive Approximation, and Pipelined Sub-Ranging ADC models. (analog to digital con..., a to d, adc)

example_sel2html(fn,new,Click_Sensed)

adc.m

adc_with_impairments

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updated 1 year ago

Analog / Mixed Signal Examples by Dick Benson

Extensive collection of examples for analog and mixed signal design work. (dsp, circuit, rf)

[Out1,Out2]=qsynth(Action,In1,In2)

analyze_BPF(Lval,Cval,Z0)

curveintersect.m

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updated 1 year ago

PSK31 Model with Symbol Timing and Carrier Recovery by Dick Benson

Updated version of PSK31 communication standard that is now R2013B compliant. (wireless, psk31, qpsk)

[bitstream,char_table]=make_bits(msg)

[sout,char_table]=load_alpha()

message=read_text(file_name)

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updated 1 year ago

Pilot Directed Continuous Synchronization of OFDM by Dick Benson

Model of a generic OFDM system with closed loop control of carrier and timing recovery. (wireless, ofdm, sync)

line_fit

ofdm_13.mdl

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updated 1 year ago

Carrier & Symbol Timing Recovery for N QAM by Dick Benson

This model implements a contemporary symbol timing and carrier recovery scheme for 2-256 QAM. (wireless, farrow, fractional delay)

QAMx_Synchronization_DT

QAMx_Synchronization_Mixed_CT_DT

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updated 1 year ago

Harmonic Wavelet based ISAR Imaging by Shreyamsha Kumar B. K.

ISAR Imaging using Harmonic Wavelets (inverse synthetic ape..., crossrange resolution, range resolution)

hammwin(N)

hammwin(N)

p=plots(x,y,z,img)

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updated 1 year ago

ECG Signal compression by Ashish Meshram (Meet)

Implementation of ECG signal compression using Amplitude Thresholding compression (ecg signal, signal processing, savitzkygolay filteri...)

atc.m

testatc.m

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updated 1 year ago

Gabor filtering on an image by Deepak Kumar Rout

Application of gabor filter on image (gabor filter, image processing, image)

gb=gabor_fn(sigma,theta,lambda,psi,gamma)

gabor_program.m

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updated 1 year ago

Tests against the null hyptothesis of whiteness by Hanan Shteingart

Tests whether a given signal is white (delta function in autocorrelation) (whiteness, random, noise)

white_test(x, maxlag, alpha)

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updated 1 year ago

Two-step method by Jacek Urbanek

Instantaneous frequency (IF) estimation based on Two-step method (instantaneous frequen..., rotational speed esti..., spectrogram)

IF=two_step_IF(x,fs,win,df,overlap,start,tol)

spectrogram_JU.m

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updated 1 year ago

Content Based Image Retrieval by Chez

Simple content based image retrieval for demonstration purposes. Either using knn or classification (image retrieval, content based image r..., classification)

L1(numOfReturnedImages, queryImageFeatureVector, dataset)

L2(numOfReturnedImages, queryImageFeatureVector, dataset,...

[obj, overall]=confMatPlot(confMat, opt)

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updated 1 year ago

DWT - SVD robust and secure watermarking scheme by Chez

Watermarking scheme based on DWT and SVD techniques. (watermarking, tamperproofing, steganography)

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updated 1 year ago

EQGEN by Avisek Mukherjee

Generates Artificial Accelerogram (earthquake, structural dynamics, structural engineerin...)

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updated 1 year ago

Modulation Intensity Distribution - GUI by Jacek Urbanek

Software calculates MID together with its integrated version (IMID) (cyclostationarity, modulation intensity ..., mid)

Edit1_value_f1(hObject,handles)

Edit1_value_f2(hObject,handles)

On_IMID_Start(handles)

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updated 1 year ago

Pink, Red, Blue and Violet Noise Generation with Matlab Implementation by Hristo Zhivomirov

Pink, red, blue and violet noise generation via spectral processing of white noise. (noise, measurement, signal processing)

bluenoise(N)

pinknoise(N)

rednoise(N)

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updated 1 year ago

test periodicity by Hanan Shteingart

Test for signal periodicity using Fisher's g-statistics (see references below) (periodicity, gstatistics, fisher)

test_periodicity.m

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updated 1 year ago

Multi-Scale Edge Detection by Shan

Multi-Scale Edge Detection with Gaussian and Laplacian Pyramids (edge detection, gaussian pyramid, laplacian pyramid)

[EdgeDecision, var]=funcVarianceMapMod(inputImage, row, c...

[varianceImg, timeTaken]=funcVarianceMap(inputImage, wind...

convolve(I, F, str)

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updated 1 year ago

Program to analyze F0 of speech ABR in Matlab by Nike

This code can be used to spectrally analyze a an ABR ASCII waveform by windowing and zero padding. (speech abr, spectral analysis, audiology)

analyzeabr.m

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updated 1 year ago

Bregman Cookbook by Jerome Gilles

This toolbox provides signal/image/3D processing based on Bregman Iterations (bregman, l1, sparse)

R=AddCurveletArray(A,B)

R=AddFrameletArray(A,B)

R=ShrinkComplexCurvelet(A,tau)

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updated 1 year ago

AR filter + Minimum Entropy Deconvolution for Bearing Fault Diagnosis by Santhana Raj

AR Filter by YuleWalker method combined with Minimum Entropy Deconvolution for bearing fault diagnos (ar, filtermed, minimum entropy decon...)

med2d.m

y=ar_med_filter(signal,Fs)

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updated 1 year ago

Calculation of CT MTF and NPS using the ACR accreditation phantom by Saul

This code enables measurements of CT MTF and NPS from images of an ACR accreditation phantom. (computed tomography, ct, modulation transfer f...)

SliceBrowser(varargin)

mtfcalc.m

npscalc.m

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updated 1 year ago

Chaotic Generators Demo by Bogdan Cristea

Chaotic generators demo can be used for studying the behavior of chaotic generators. (chaos, attractor, bifurcation diagram)

[waxis,Pyy,bic]=m_bicoher(y,nfft,wind,nsamp,overlap)

[waxis,Pyy]=m_powerspec(y,nfft,wind,nsamp,overlap)

attractor(action)

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updated 1 year ago

FeatureFinder 2.4.1 by Feature Finder

A user-friendly tool for signal filtering and feature extraction. Well-suited to large data sets! (gui, data import, data export)

Comm_Alert(sMessage)

Comm_Exit()

Comm_Help(sTitle,sMessage)

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updated 1 year ago

Sound file converter GUI by Christopher

The program converts MATLAB supported soundfiles with the use of GUI. (converter, gui, audioread)

ConverterPanel(varargin)

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updated 1 year ago

Agilent Infiniium and InfiniiVision Oscilloscopes – MATLAB Example by Vinod Cherian

MATLAB application example for Agilent Infiniium and InfiniiVision oscilloscopes (matlab example, agilent, oscilloscopes)

AnalyzedDataPanel(parent, title)

DataSourcePanel(parent, title)

MICTSource(hParent, bSimulation)

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updated 1 year ago

JPEG-based computing by Boris

This is a function to test a JPEG-based encoding/decoding algorithm (demo, image processing, compression)

entropy_cod( input_matrix, n)

get_quantization( q )

huffman_cod( input_matrix)

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updated 1 year ago

Wave Player Visualizations (Geek) by Suraj Kamya

Kviz_playerV1 is Kamya Visualization music player Version 1 have a number of Geek Visz (3D-also) (music player, visualization, sound processing)

Kviz_Player_V1(varargin)

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updated 1 year ago

Filter Bank Design by Iman

This function can be used to design uniform and non-uniform filter banks. (filter bank, perfect reconstructio..., uniform filter bank)

A=A_gerenator(x,Beta,Sigma_dictionary,M)

Beta=Beta_dictionary(M,nk)

M=Find_LCM(x)

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updated 1 year ago

speccompare by Martin Kuriger

SPECCOMPARE shows the spectral differences of two signals using colors and brightness. (signal processing, spectrogram, difference)

speccompare( X1, X2, Fs, titleString, maxDiff_dB )

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