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Listing of Communication in Scripts

Orthogonal Variable Spreading Factor (OVSF) code tree generation. Only input value is spreading factor (must be power of 2), and only output is cell array for orthogonal codes that is SF x SF in size. Code Tree Reference: 3GPP TS 25.213 V10.0.0, "3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Spreading and modulation (FDD) (Release 10).

  • Publisher: MintMan
  • Date: 25-04-2013
  • Size: 10 KB
  • Platform: Matlab, Scripts

1) Pls note that the input sequence shall be a power of 4. 2) Output bits are reversed in Quaternary System..

  • Platform: Matlab, Scripts

A function that codes a string of chars with Lempel Ziv coding.

  • Platform: Matlab, Scripts

It is a matlab function that codes a string of char with Arithmetic coding. res=arithmetic_code(alphabet, distr_pr, string) 'alphabet' is a vector that contains the char used in the string 'string'; 'string' is the string to codify; 'distr_pr' is the probability distribution of the alphabet's elements.

  • Platform: Matlab, Scripts

DphpBB3 Last Topics module (mod_dphpbb3_last_topics) shows the last topics from your phpBB 3.0.x forum. It's the excellent module for Joomla! 1.5 site with phpBB3 forum to display forum activity on the site. There is no need to integrate forum and site, forum and site may use different databases (and servers) d-deOCL everything configurable.

  • Publisher: Darkick
  • Date: 10-02-2013
  • Size: 20 KB
  • Platform: PHP, Scripts

This could be very useful model when used in signal processing. I have implemented this to filter the disturbances in my ADC signals in my programming and it works good..

  • Platform: Matlab, Scripts

FIFO Queue implementationhttp://www.downloadplex.com/index.php?a=admin&b=programs&os=Scripts&add.

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

Yet another simple module that is being made available because I've been asked about it on my site in the past. This module currently supports Google Talk Chatback, Meebo, AIM WIMZI & MSN Messenger Widgets. You can enable one, some or all of them, and with the module settings you can adjust the width & height of the widgets.

  • Platform: PHP, Scripts

The user can generate as many beams he wants, by setting steering angle, focalization and intensity. Number of array elements can be set. Different weighting windows can be set to reduce sidelobes. Just run MAIN.m Diglo.

  • Platform: Matlab, Scripts

This file sets up a simulation environment for analyzing receive systems, gives a basic example, and checks that the results reflect the setup. It is handy because it allows the basic simulation environment to be specified quickly and easily, generates a bunch of useful variables, and takes care of the details of setting the signal to noise.

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

This is a Random Sequence generator used in Cryptography, Spread Spectrum, Information Security.

  • Platform: Matlab, Scripts

This function searches the interior of a signal in an attempt to find a segment that may be used in order to make the signal quasi-periodic. This can be used to reduce the influence of end effects on analyses such as the Hilbert Transform, the Wavelet Transform, the Hilbert-Huang Transform and EMD, or Hilbert Vibration Decomposition.

  • Publisher: Nate Yoder
  • Date: 04-04-2013
  • Size: 10 KB
  • Platform: Matlab, Scripts

This is a simple program to simulate Single Side Band Modulated Signals. Many of the students have a very big misconception on Single Side Band Modulation. This is the correct algorithm for SSBAM. This is a simple technique for a very simple, but misunderstood problem.

  • Platform: Matlab, Scripts

Digital signal generator (sumulator) with power spectrum display and sliders for "real time" control, useful for teaching and demonstrating the power spectra of different types of signals and the effect of signal duration and sampling rate. Version 1.

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

phpRPC is meant to be an easy to use xmlrpc library. Function syntax, and plugging into most weblogs (xoops, nuke, pn, etc) is greatly simplified with the use of database/rpc-protocol abstraction. It should run on any php server with most datbases..

  • Platform: PHP, Scripts

Contains two functions. The one function computes the greatest common divisor (gcd) of two polynomials a(x) and b(x) over GF(2^m). The other function performs the extended Euclidean algorithm where two polynomials u(x) and v(x) is calculated in addition to the gcd of a(x) and b(x) such that gcd = u(x)a(x) + v(x)b(x).

  • Platform: Matlab, Scripts

It will ask for input the bit stream then generate pseudorandom bit sequence, finally give output as direct sequence spread spectrum......

  • Platform: Matlab, Scripts

This a good program to start with signal processing in matlab.This gives you basic idea about covolution algorithm..

  • Platform: Matlab, Scripts

Occurrence of Zipf's Law in Literatute is demonstrated with the help of this file. The top ten words of "The Adventures of Sherlock Holmes by Sir Arthur Conan Doyle" are listed below: 'the' 'I' 'and' 'to' 'of' 'a' 'in' 'that' 'was' 'it' Ref: [Holmes] http://www.

  • Publisher: Nabin
  • Date: 20-02-2013
  • Size: 10 KB
  • Platform: Matlab, Scripts

ISSUE: We can observe that when the dimension of A is a multiple of 2, pixel information is misplaced (top-left-corner) or lost (bottom-right-corner) FIGURES: 1st-row L-to-R: Shows an original image GREEN, then its MATLAB's radon transform (a.k.a. sinogram), then its MATLAB's inverse radon transform REED (aka iradon), then the position comparison between the original and reconstructed, NON-MATCHING pixel position: SEPARATE COLORS.

  • Platform: Matlab, Scripts

dftmat = DFT matrix of order N x N; N = Order of the matrix computes the DFT matrix of orer N x N; DFT matrix is a n x n matrix defined as Wn=[(Wn)^km] Wn=exp(-j*2*pi/n) Reference: Multirate Systems and Filter banks by P.P Vaidyanathan Pearson Education 1993 appendix A.

  • Platform: Matlab, Scripts

LINKAXES links the axis limits of several axes. LINKZOOM links the ZOOM and PAN regions ignoring the axes limits, then, it can be used to link several axes with different limits. Usage: >> subplot(311) >> ... >> subplot(312) >> ... >> subplot(313) >> .

  • Platform: Matlab, Scripts

This software has been realized at the Technology Lab, Department of Cognitive and Neural Systems, Boston University - http://techlab.bu.edu. The main author of the software is Praveen Pilly ( http://techlab.bu.edu/members/advait/ ). How does the brain make perceptual decisions? Speed and accuracy of saccadic decisions regarding motion direction depend on the inherent ambiguity in the motion stimulus and correlate with the temporal dynamics of firing rates in parietal and frontal cortical neurons of macaque monkeys.

  • Platform: Matlab, Scripts

This is an educational tool for understanding linear convolution of two vectors. Animates the convolution process. Not intended for use with really long vectors..

  • Publisher: Marc
  • Date: 22-04-2013
  • Size: 10 KB
  • Platform: Matlab, Scripts

This program is the same as DATEVEC but rounds the seconds, so, eliminates the problem with the 60 seconds not rounded value. It uses DATAVEC and takes a little time while checking the date components..

  • Platform: Matlab, Scripts

Chaotic Binary 32-bit generator according to the article in the IEEE 2001, University of Nebraska "Robust Chaotic PN sequence generation techniques" Created to 'UNIVPM Ancona 26/01/2009%%% To vary the length of the sequence generated (set to 127), just edit N.

  • Publisher: Giancarlo
  • Date: 19-04-2013
  • Size: 10 KB
  • Platform: Matlab, Scripts

The task of this work is to extract a signal radiating from a specific direction in the presence of a jamming signal being transmitted at same frequency. There are four cases in the first case transmitter and jammer are in different directions and are at equal range from receiver but the jammer is switched off that is there is no interference signal.

  • Platform: Matlab, Scripts

This function is a more robust and improved version of my previous submission, matchingpursuit.m This function computes the projection of a given input vector or matrix onto a "dictionary" of other vectors or matrices using a matching pursuit algorithm.

  • Platform: Matlab, Scripts

Samplify for Matlab allows sampled data users (those capturing real-world samples from A/D converters, or sending samples to D/A converters) to compress these samples in one of three compression modes: a) SignalZIP (TM) lossless mode, b) Samplify fixed-rate mode (users specify the desired compression ratio) c) Samplify fixed-quality mode (users specify the desired dynamic range) Samplify for Matlab demonstrates the achievable rate-distortion tradeoffs (higher bit rates have lower distortion) of the Samplify compression algorithm.

  • Publisher: Al Wegener
  • Date: 24-05-2013
  • Size: 4506 KB
  • Platform: Matlab, Scripts

These are two M-files 'fourier1' and 'fourier2' The first is designed to demonstrate how triangular, rectangular, saw tooth, half wave and full wave rectified signals can be built from superposition of a predefined no of Fourier harmonic terms. It demonstrates how increasing the number of terms included in the summation will improve the signal shape.

  • Platform: Matlab, Scripts

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