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Listing of Communication in Scripts

Some curve fitting or smoothing tools can benefit from knowledge of the noise variance to expect on your data. Kalman filters use this information, also some spline fitting tools. So I wrote a function to extract the noise variance from a signal vector.

  • Platform: Matlab, Scripts

The Files includ;The Filecy modulation and demodulation technique.

  • Platform: Matlab, Scripts

This function generates random numbers distributed according to the Laplace distribution using the Probability integral transformation.

  • Platform: Matlab, Scripts

This is update to 'Signal Processor for Graphs (Pictures) ' Present tool has got following improvements over previous version. 1. Zero padding for elemination rounding off error. 2. Mean, Standard deviatio and variance calculations. 3. Adding a function (useful for digital signal processing).

  • Platform: Matlab, Scripts

The Signal Builder Block will only generate code for 1 test group. This block is designed to generate the code for the other test groups and allow for easy selection through a tunable parameter. This also allows for programmatic control of the signal builder groups from System Test.

  • Platform: Matlab, Scripts

CVencode.m % function for CV encoding (arbitrary CV code) VAharddecode1.m % function for Viterbi hard decision decoding CVsimhard.m basic CV coding/decoding BERcurve_CV_hard.m computes simulated BER curve UTILITY FUNCTIONS getcodeparameters bin2deci deci2bin.

  • Publisher: B Gremont
  • Date: 10-03-2013
  • Size: 10 KB
  • Platform: Matlab, Scripts

Toolbox for log-spectral magnitude MMSE estimators under super-Gaussian densities. The toolbox can also be downloaded from: http://ict.ewi.tudelft.nl/~richard/log_spe...per_gaussV1.rar The matlab files enclosed in this toolbox can be used to tabulate gain functions for log-spectral magnitude MMSE estimators under an assumed Generalized-Gamma model for the clean speech magnitude DFT coefficients.

  • Platform: Matlab, Scripts

THIS FUNCTION PLOTS FFT OF THE SIGNAL INPUT TO THE FUNCTION IS userfft(input, sampling frequency, waveform, psd) input -> Input waveform sampling frequency -> Sampling frequency waveform -> 'real' refers to real baseband signals plots only half the fft output -> 'complex' refers to complex baseband signals plots complete spectrum -> 'bandpass' psd -> 'unbaised' refers to the fact that fft.

  • Platform: Matlab, Scripts

Platform: Matlab 6.5 The project provides a graphical user interface made in GUIDE. Consists of Delta Modulation and Adaptive Delta, which are modulation techniques which is one bit quantizer. once the modulation, use the NRZ line code, to conform to the comm channel.

  • Platform: Matlab, Scripts

A single program which plot Spectrum of AM modulation. For more information, visit: http://www.matpic.com.

  • Platform: Matlab, Scripts

The following zip file contains two routines for analysis/synthesis of HNM. HNM is a analysis/synthesis model of speech,like classical LPC model. Due to the limitation of my ability,i only implement a simply version of HNM,so welcome for somebody to improve on it.

  • Publisher: xu ning
  • Date: 12-05-2013
  • Size: 10 KB
  • Platform: Matlab, Scripts

CRYSISFPS.M- CRYTEK GAME ENGINE BENCHMARK ON 8800GTX SLI SYSTEM Graphics Hardware is often benchmarked by how it performs under load- like in intensive 3D games. A measure of the system performance in the game is how many Frames Per Second (FPS) it can render.

  • Platform: Matlab, Scripts

Very simple simulation of modulation BPSK in simulink. For more information, visit: http://www.matpic.com.

  • Platform: Matlab, Scripts

In addition to the program file there is a text file CodeGroups.txt that has some code groups that can be sent. The three documents MorseCodePlayer.pdf, .htm, .docx are just three different versions of the help file. The code speed(rate of dots and dashes), word speed(period between words) and audio frequency of transmitted dots and dashes can be adjusted.

  • Publisher: James
  • Date: 19-05-2013
  • Size: 143 KB
  • Platform: Matlab, Scripts

A fourier filter for time-series signals. Version 1.5, May 4, 2007, is calibrated specifically for time-based signals. Does not require the Signal Processing Toolbox. By adjusting the parameters, you can create lowpass, highpass, bandpass, and bandreject (notch) filters with variable cut-off rate.

  • Platform: Matlab, Scripts

This is just a file which uses the familiar functions which is available in matlab itself..

  • Platform: Matlab, Scripts

This application can be useful to understand how to use microphone (and timer) and how to record. Just execute the file, then click "test" and say a word (wait 1 second) say another word, etc. you can save and load the database. I used this software for voice recognition but I only left the recorder part in this file.

  • Publisher: berenger
  • Date: 20-06-2013
  • Size: 10 KB
  • Platform: Matlab, Scripts

alculate the normalized partial energy sequence (NPES) for a given signal vector X. If a particular transform is capable of capturing the key features of a signal in few coefficients, the NPES will approach unity for relatively quickly. Ref: Percival and Walden, Wavelet Methods for Time Series Analysis, 2000.

  • Publisher: Adam Auton
  • Date: 03-04-2013
  • Size: 10 KB
  • Platform: Matlab, Scripts

In many filtering problems one receive not just a single measurement, but a set of measurements at each time step. The most straightforward way of dealing with such variable cardinality entities in Matlab is to store them in cell arrays, but for various reasons the user may not want that.

  • Platform: Matlab, Scripts

THIS FUNCTION PROVIDES A USER A UTILITY TO PLOT THE BEAMPATTERN OF LINEAR ISOTROPIC ARRAYS BY PROVIDING THE INTER-ELEMENT DISTANCES,CORRESPONDING WEIGHTINGS AND/OR STERING DIRECTION OF THE BEAM..

  • Platform: Matlab, Scripts

ITU-T Recommendation P.505 One-view visualization diagrams of speech quality measurement results Summary Nowadays, the numerous complex parameters that determine the speech quality of telecommunication equipment as well as the end-to-end speech quality can be interpreted by technical experts only.

  • Platform: Matlab, Scripts

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

  • 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

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

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

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
  • 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

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