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Listing of Communication in Scripts

The function coverts a decimal number into a two's compelement number of a given in argument number of bits..

  • Platform: Matlab, Scripts

Generation of signal with extra parameters Detection using; Fast Fourier Transform Algorithm Goertzel Algorithm Digital Filtering (FIR Filter bank).

  • Platform: Matlab, Scripts

This script calculates the PSD of a time history. It prompts the user for parameters related to the spectral resolution and the number of statistical-degrees-of-freedom..

  • Publisher: Tom Irvine
  • Date: 19-06-2013
  • Size: 10 KB
  • Platform: Matlab, Scripts

The zip files contains Simulinkā„¢ models that can be used for Teaching Signal Processing Concepts interactively. The models can be used for demonstrations or with modern teaching methods. The examples build on the ideas presented in the paper "Interactive models for teaching digital signal processing", Proc.

  • Publisher: Kirtan Mod
  • Date: 19-06-2013
  • Size: 6226 KB
  • Platform: Matlab, Scripts

The files contained in this zip file serve as an introduction to using RTDX technology from Texas Instruments with Simulink for the purpose of verifying that that your Simulink simulation is running the same way as your DSP implementation. You will need R2006a+ or greater.

  • Platform: Matlab, Scripts

OFDM Signal generation and decoding using QPSK as the modulation technique. This type of OFDM is particularly useful for WiMAX and other Wireless and Multimedia Standards. QAM4 and QPSK is same modulation technique. Just run the Model and with different SNRs in the Channel Block observe the performance of the OFDM.

  • Platform: Matlab, Scripts

This is an FSK modulation spread with a PN sequence generator. It is a simulation file that illustrates the effects of spread spectrum communications. I am interested on collaboration..

  • Platform: Matlab, Scripts

The submission considers a case where you deduce what weather it is given the status of a shirt that is hung outside. The weather could be Sunny, cloudy, Rainy and the shirt could be dry, dryish, damp etc. Now given some probability matrices (The initial probability of the weather, the transition probability of the weather and the observation given weather matrices), can the chain of weather be deduced? The Viterbi algorithm is used to decode the states.

  • Platform: Matlab, Scripts

This basic model shows you how to acquire live data from an Agilent oscilloscope into Simulink. This model was developed for the Agilent 6000 series oscilloscope but may work with other Agilent scopes with little or no modifications. I welcome submission reviews below to let us know whether you got it working with your specific Agilent scope.

  • Platform: Matlab, Scripts

Simulink and Stateflow model of a full duplex Bluetooth communication link transmitting HV1, HV2, HV3, and SCORT [1] voice packets, and DM1 data packets. A system parameters block configures the whole model's packet type, slot pair and channel type. Stateflow is used to implement the acknowledgement scheme for the data packets and the SCORT receiver state machine.

  • Platform: Matlab, Scripts

Includes 2 functions to write and read MP3 files. It works like the commands WAVWRITE and WAVREAD. 1.- Just unpack in the toolbox folder under the MATLAB directory. 2.- Set the MATLAB search path to include that folder. This version was made in MATLAB for WINDOWS only.

  • Platform: Matlab, Scripts

this second version support complex data. [data, plot_title] = ssbin2mlab(filename, desired_variable) reads a Binary Smartspice RAW file 'filename' and extract the variable(s) of interest from 'desired_variable' using the file's own variable index format and place the data in column into the variable 'data' and also return a title into 'plot_title'.

  • Platform: Matlab, Scripts

Resamples X(n). Y(n) = X(alpha*n), where alpha is a resample interval. For example, if X is data sampled at 1000 samples per second and you would like to transform it to the equivalent of 1100 samples per second use alpha= 1000/1100 (.9091); for 800 sample per second use alpha = 1000/800 (1.

  • Platform: Matlab, Scripts

The IEEE Multipath Channel block simulates an indoor UWB channel as described in "A Channel Model for Ultrawideband Indoor Communications" by J.R. Foerster, M. Pendergrass and A.F. Molisch, November 2003, and attempts to incorporate the processes used in their MATLAB scripts.

  • Platform: Matlab, Scripts

SSA generates a trayectory matrix from the original series by sliding a window of length L. The trayectory matrix is aproximated using Singular Value Decomposition. The last step reconstructs the series from the aproximated trayectory matrix. The SSA applications include smoothing, filtering, and trend extraction.

  • Platform: Matlab, Scripts

Usage: I=mi(A,B), where A and B are equally sized images/signals. Function hist2 (included) is used to determine the joint histogram of the images/signals. All histograms use 256 bins. Assumptions: 1) 0*log(0)=0, 2) mutual information is obtained on the intersection between the supports of partial histograms.

  • Platform: Matlab, Scripts

For several different reasons it could occur that we need to produce a signal from the sum of several harmonic components. In the usual case of Fourier analysis, FFT and IFFT are likely the best choice. However it could happen that: - The frequencies of the harmonic components are unevenly spaced - The time vector is unevenly spaced In such cases we could be in the need of coding the summation directly in Matlab, that is quite slow in performing this tasks.

  • Publisher: Gabriele
  • Date: 13-06-2013
  • Size: 10 KB
  • Platform: Matlab, Scripts

The overlap add and overlap save are the two generally implemented methods when the input is greater than the maximum processible block in MATLAB because of memory constraints..

  • Platform: Matlab, Scripts

Included is a readme word document that fully describes how to run the graphical user interface, describes the outputs etc.. In essence this GUI can be used for calculating resonance parameters for the quasi-TEM modes of cylindrical re-entrant structures.

  • Publisher: Tim Reeves
  • Date: 27-03-2013
  • Size: 225 KB
  • Platform: Matlab, Scripts

Computes the Woody average by first aligning individual signals (corrupted by jitter) with the standard average. Uses xcorr to compute the lag and then re-averages the signals to get an improved estimate. Example included in help. Technique deteriorates at low SNRs.

  • Platform: Matlab, Scripts
  • fftGPU
  • License: Freeware
  • Price: 0.00
  • Rating

This function implements vectorized FFTs on a GPU. The answer is the same as the fft and ifft matlab functions. You need to install the GPUFFTW2.0 library of Naga K. Govindaraju http://gamma.cs.unc.edu/GPUFFTW/ . On Naga's wed site, you can see the system requirements.

  • Platform: Matlab, Scripts

This folder contains two simple functions (zerocross and energy) to compute STE and STZCR. The script zcr_ste_so.m uses these two and other functions (included) to compute the STE and STZCR of the word 'so'. See the respective function help for more details.

  • Platform: Matlab, Scripts
  • 3D-SPIHT
  • License: Freeware
  • Price: 0.00
  • Rating

These functions implement the 3D SPIHT algorithm, used for the compression of 3d wavelet coefficients. Such 3d wavelet coefficients are produced during the coding of video sequences..

  • Platform: Matlab, Scripts

Calculates windowed (over- and non-overlapping) RMS of a signal using the specified windowlength y = rms(signal, windowlength, overlap, zeropad) signal is a 1-D vector windowlength is an integer length of the RMS window in samples overlap is the number of samples to overlap adjacent windows (enter 0 to use non-overlapping windows) zeropad is a flag for zero padding the end of your data.

  • Platform: Matlab, Scripts
  • RUNMEAN
  • License: Freeware
  • Price: 0.00
  • Rating

For vectors, Y = RUNMEAN(X,M) computes a running mean (also known as moving average) on the elements of the vector X. It uses a window of 2*M+1 datapoints. M an positive integer defining (half) the size of the window. In pseudo code: Y(i) = sum(X(j)) / (2*M+1), for j = (i-M):(i+M), and i=1:length(X) For matrices, Y = RUNMEAN(X,M) or RUNMEAN(X,M,[]) operates on the first non-singleton dimension of X.

  • Platform: Matlab, Scripts

An LPC vocoder (Linear-Predictive Coder), is a lossy compression technique that is highly optimized for low-bitrate speech transmission. The problem here that we solve is to take a speech waveform with an 8kHz sampling rate, code it to a much lower bit-rate so that it can be transmitted over a channel, and finally decode it to a signal that is of the same quality.

  • Publisher: Benjamin
  • Date: 22-06-2013
  • Size: 174 KB
  • Platform: Matlab, Scripts

This file is for begainers, who wanted to learn the MATLAB in short duration of time..

  • Platform: Matlab, Scripts
  • MGWT
  • License: Freeware
  • Price: 0.00
  • Rating

MGWT: Identification of protein coding regions using the Modified Gabor-wavelet transform. Sequence of test: F56F11.4.fasta (included into the zip file) http://www.ncbi.nlm.nih.gov/entrez/viewer....de&val=AF099922 http://www.vision.ime.usp.br/~jmena/projec.

  • Platform: Matlab, Scripts

This a very simple function that produces a condensed, approximate version of the time-series signal y, with each group of n adjacent points in y replaced by its average. You can use this to condense over-sampled signals so that subsequent processing will be easier and faster.

  • Platform: Matlab, Scripts

The function plot_hht is a realization of the Hilbert-Huang transform (HHT). The HHT decomposes a signal into intrinsic mode functions (or IMFs), and obtain the instantaneous frequency data. It is designed to work well for data that are nonstationary and nonlinear (http://en.

  • Publisher: Alan Tan
  • Date: 08-02-2013
  • Size: 1014 KB
  • Platform: Matlab, Scripts

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