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Listing of Communication in Scripts

This demo consists of a m-file script (fixed_point_atan2_using_cordic.m) and a m-file function (atan2_fixpt.m). The script contains a step-by-step explanation of how a four quadrant arctan can be calculated using a CORDIC (COordinate Rotation DIgital Computer) algorithm.

  • Platform: Matlab, Scripts

The attached zip file contains the slides, MATLAB M-files, and Simulink models that were used in the Fixed-Point Programming in MATLAB webinar from December 8, 2005 by Tom Bryan. The recorded webinar is linked off of the Fixed-Point Toolbox web page <http://www.

  • Publisher: Tom Bryan
  • Date: 13-03-2013
  • Size: 1669 KB
  • Platform: Matlab, Scripts

Functions accompanying MATLAB News & Notes article "Fixed-point Signal Processing: Getting Started" by Darel A. Linebarger and Thomas A. Bryan, 2004. The functions include an FIR filter in M that can be run in fixed-point and floating-point..

  • Publisher: Tom Bryan
  • Date: 16-06-2013
  • Size: 10 KB
  • Platform: Matlab, Scripts

Run demo file included. Double to fixed-point conversion with setting options like word length, signed/unsigned, automatic or manual scaling, guard bits....

  • Publisher: Gilles
  • Date: 14-04-2013
  • Size: 10 KB
  • Platform: Matlab, Scripts

This is pretty much the standard, jet plane like, flange effect. The input variables may require a little experimentation to get a good hold on. For instructions and an example on how to use this function, put FLANGE.m in your MATLAB work folder and type "help flange" at the MATLAB command prompt.

  • Platform: Matlab, Scripts

The program constructs girth-six QC-LDPC codes given row-weight,k, column-weight,j, and sub-matrix size,m. The obtained parity-check matrix is stored in H. The construction has flexibility in that j,k and m can be varied.The program achieves girth-six by applying the row-column constraint.

  • Platform: Matlab, Scripts

In FORMANT_TRACKER.M the input speech waveform is broken up into number of overlapping frames. LPC analysis for each frame, frequencies for each frame are plotted are also given as output in a matrix..

  • Platform: Matlab, Scripts

Finding the Fourier transform of a rectangular pulse.. filtering the spectrum and regenerating the signal using the filtered spectrum is done... at the end Rayleigh theorem is proved by showing that the energy content of both time domain and frequency domain signals are equal.

  • Platform: Matlab, Scripts

With this Fourier Calculator a periodic signal can be analyzed and represented in figures with harmonics. The signals can easily be produced in the model..

  • Platform: Matlab, Scripts

According to shannon theory it is possible to reconstruct a band limited signal from its Fourier components provided it is sampled sufficiently...just to demonstrate this, posting a small example based on that.

  • Publisher: kk KKsingh
  • Date: 06-06-2013
  • Size: 10 KB
  • Platform: Matlab, Scripts

The programme here draws the plot of the periodic signal whose 'Ck' is given by user. Following data should be entered by user. 1. Ck value (separate for k=zero, k= even and k=odd) 2. Time period of periodic function 3. Resolution 4. Range of k (it is actually -inf to +inf) we can only give suitable value for process to converge.

  • Platform: Matlab, Scripts

The program transforms an input image using the differential box counting algorithm to a fractal dimension (FD) image, i.e. each pixel has its own FD. Then the user can select any region of interest in the generated FD image to estimate the corresponding mean, standard deviation and lacunarity.

  • Platform: Matlab, Scripts

The free Joomla Instant Messaging Module allows you the ability to add 123 Web Messenger into your Joomla website. It enables your website more powerful with the 'Facebook Messenger Style Web Chat Bar' and more interactive to turn the visitors to registered members and get them stick to your website.

  • Platform: PHP, Scripts

Use this extension to send free SMS from your Joomla blog, and earn every time it's used. We pay out 50p GBP (0.75 USD) for every SMS recieved via this extension. With a minimum payout of dldl100 GBP ($150 USD). Affiliate account on FreebieSMS.co.uk required.

  • Publisher: FreebieSMS
  • Date: 08-04-2013
  • Size: 31 KB
  • Platform: PHP, Scripts

RF Blockset converts frequency domain RF information to a baseband-complex time-domain model, for fast execution and compatibility with Simulink signal processing and communications blocks. This simple model illustrates some relationships inherent in the conversion.

  • Platform: Matlab, Scripts

These programmes are not heavily commented but infact are very simple and intutive to understand the Frequency hopping and related tasks. I have made two files for frequency hopping, one of them is not showing 6 proper impulsive peaks but other programme is infact showing them, In DSSS i have generated 20 bits and each bit is 6 units long and then it is XORed with another pseudorandom data bits and then it is BPSK modulated and hence two peaks in its FFT are displayed.

  • Platform: Matlab, Scripts

Helps measuring the exact frequency of a signal within a range, by means of finding the maximum of the product of the signal with a sinusoid. Speacially useful when dealing with real-world data. As recently published on my blog: http://loluengo.blogspot.

  • Platform: Matlab, Scripts

The Files includ;The Filecy modulation and demodulation technique.

  • 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

A robust function that uses frequency-domain -i/frequency filtering to integrate a function. Edge-tapering is used to minimize aliasing errors..

  • 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

fSGolayFilt is a fast polynomial smoothing filter for uniformly spaced signals. This implementation offers less flexibility than other versions found in the MATLAB Central (eg. from Jianwen Luo, YangQuan Chen or Vassili Pastushenko), but it is optimized for speed by using a C-Mex function for the calculations.

  • Publisher: Jan Simon
  • Date: 06-05-2013
  • Size: 20 KB
  • 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

This program operates as a signal spectrum analyzer and a distortion meter at the same time. It can accept any numerical data representing few cycles of a signal. The data do not need to be equally separated. At least ten data points per cycle are needed.

  • Platform: Matlab, Scripts

I was not able to get the peaks from my experimentally obtained data because of its random nature. As a result the findpeaks() defined in Matlab library was not giving results as expected. Hence I made a code which will help findpeaks() help detect the peaks more accurately.

  • Platform: Matlab, Scripts

OVSF code is used in wireless transmission to combine two messages having different data rates in an orthogonal manner..

  • Platform: Matlab, Scripts

To use this function just define a variable say var, var = pnseq(a, b, c); for a, b and c refer to the zip file.

  • Platform: Matlab, Scripts

This function generates a Timeseries file which can be used for Moore FSM coverage analysis. The file is generated in the working directory and can be opened into the Workspace for use by MATLAB, or read directly into Simulink using the 'Import Data From File' source block.

  • Platform: Matlab, Scripts

This function very efficiently generates a Truth Table matrix of arbitrary, user specified dimension. The order of the Truth Table is limited only by the user's available system memory. The function is highly efficient, written using only three variables in 15 lines of MATLAB code.

  • Platform: Matlab, Scripts

This function generates Walsh Codes. The difference between this function and other functions available to generate walsh code is : 1. you can call this function directly in your script, you will have to pass only the value of 'a' (length of code is 2 ^ a) 2.

  • Platform: Matlab, Scripts

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