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Listing of Communication in Scripts

Compute the discrete Fourier transform at specified frequencies, not using fft. Why one may need this? (1) MATLAB fft function computes the amplitude of signals only (no phase). (2) Once having the recorded time-series data, one often uses fft to do the spectral analysis.

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

[coef, RSquared]=plotfit(x,y,polyorder) A simple function that accepts x,y data pairs in in the vectors "x" and "y", fits it to a polynomial of order "polyorder", plots the data and the fit, and displays the fit coefficients and the goodness-of-fit measure R-squared in the upper left corner of the graph.

  • Platform: Matlab, Scripts

In this program it is shown that how signal are multiplexed and how multiplexed look like. It is good for teaching and get feel of multiplexing. It can also observed that requirement for multiplexing more signals is the high symbol rate..

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

For a description, see the User Guide and the Programming Guide (included or downloadable at http://grwavsf.roma1.infn.it/snag).

  • Platform: Matlab, Scripts

In Radars, range resolution and long range of operation are the two important aspects. Long range operation means the maximum distance over which radar can detect the targets. The radar transmit modulated pulses to take the advantages of better processing gain and resolution of these waveforms are compared to continuous wave pulse.

  • Publisher: siddhu
  • Date: 24-03-2013
  • Size: 31 KB
  • Platform: Matlab, Scripts

Includes clear comments about Phase Locked loop..

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

width = fwhm(x,y) Full-Width at Half-Maximum (FWHM) of the waveform y(x) and its polarity. The FWHM result in 'width' will be in units of 'x' The code was developed by an unknown author..

  • Platform: Matlab, Scripts

It will help you to make a N-point Paired matrix for FFT..

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

This function displays the PSNR (peak signal-to-noise ratio) between two images. The answer is in decibels (dB). PSNR is very common in image processing. A sample use is in the comparison between an original image and a coded/decoded image. Typical quoted PSNR figures are in the range +25 to +35dB.

  • Platform: Matlab, Scripts

Hello, Can anyone help me debug my "Single Phase Inverter" model? I have it semi-made, i have pwm features in there, but i just can't get it to work. I need to achieve a Pure Sine Wave, at the output. And also at variable frequencies. I have a transformer attached at the output too, to achieve multiple ranges of voltage outputs.

  • Platform: Matlab, Scripts

It uses the MATLAB built in sounds like chirp ,handel,laughter,train analyze them,plot them with time,show their spectrum and so..

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

use matlab to implement fft.

  • Publisher: ustc huan
  • Date: 07-06-2013
  • Size: 10 KB
  • Platform: Matlab, Scripts

Let us assume the following MIMO model: Y(k)=HX(k)+Y(k) This file can detect the number of sources, i.e the size of the vector X(k) from the received signal Y(k). The noise is assumed spatially white and the number of receivers must be strictly greater than the number of sources.

  • 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

This function is for training a codebook for vector quantization. The data set is split to two clusters, first, and the mean of each cluster is found (centroids). The disttance of each vector from these centroids is found and each vector is associated with a cluster.

  • 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

This is an alpha model of a polling based PROFIBUS MAC over a 802.11b PHY layer. A central base station is polling the network members in cyclic order. The PHY layer ist modeled as detailed as possible, including the PLCP and PMD sublayer, the service primitives, the state machines.

  • Platform: Matlab, Scripts

This program deals with Spread spectrum communication systems using chaos as the sequence generators. In coming days I will be updating it with complete chaos based generators Frequency Hopping and CDMA systems with multiple users and till oustic networks poustic networks phase.

  • Platform: Matlab, Scripts

This application example implements an end-to-end baseband communications system compliant to the US MIL_STD_188_110B intended for long-haul and tactical communications. This model supports four different data rates: 1200bps, 600bps, 300bps and 150bps.

  • Platform: Matlab, Scripts

Set of functions to help students and engineers to make analysis and synthesis of transmission lines, waveguides, antennas and radio links..

  • Platform: Matlab, Scripts
  • rootlocus
  • License: Shareware
  • Price: .price.
  • Rating

root locus for transfer function (s/3+1)/(0.2s^2+0.8s). you can change also use this file to plot the root locus..

  • Publisher: parminder
  • Date: 05-01-2013
  • Size: 10 KB
  • Platform: Matlab, Scripts

Usage: Jitter = Pn2Jitter(f, Lf, fc) Inputs: f: Frequency vector (phase noise break points), in Hz, row or column. Lf: Phase noise vector, in dBc/Hz, same dimensions, size(), as f. fc: Carrier frequency, in Hz, a scalar. Output: Jitter: RMS jitter, in seconds.

  • Publisher: Arne Buck
  • Date: 06-02-2013
  • Size: 10 KB
  • Platform: Matlab, Scripts

Simulink and Stateflow model of a four input, four output packet switch. The model includes variable length packet generators, FIFO managers, a scheduler, and a crossbar. Instructions: Unzip to a new folder, change the MATLAB current directory to this folder, then open the 'packet_switch' mdl file.

  • Platform: Matlab, Scripts

type "untitled" to run. The 7 bit data can be inputted or generated randomly.The crc polynomial used is fixed and cant be changed. The function that calculates and verifies the crc is " mycrc ". The file untitled is the gui but its m file also contains code for generation of random data.

  • Platform: Matlab, Scripts

It works well for DPO 7254..

  • Publisher: Roy
  • Date: 10-01-2013
  • Size: 430 KB
  • Platform: Matlab, Scripts

The attached files are implementation of AM and FM Modulation..

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

- picks reasonable limits and ticks - uses latex for pretty fractions if necessary - replaces old labels produced by previous calls - does NOT autocorrect on zoom/pan/resize algorithm: - choose limits as smallest n such that pi/n < x_data_range - optional: increase n to next smallest "round" number - "round" means "power of 2" right now; could be a*b^n with a<b, 2^a*3^b, etc - choose step size as smallest d that ensures at least L tick marks I'm sure there are plenty of bugs.

  • Publisher: Alan B
  • Date: 17-02-2013
  • Size: 10 KB
  • Platform: Matlab, Scripts

The program constructs girth-twelve column-weight QC-LPDC codes. The rate can be changed by changing k(row-weight), size is changed by varying m(sub-matrix size). The program/algorithm does not guarantee to get girth twelve code. It guarantees girth of eight.

  • Platform: Matlab, Scripts

The Referral Database script connects people to community resources and human service organizations by providing an intuitive user interface and database to store and access information about agencies. It is free, web based, and written in PHP and MySQL.

  • Publisher: Joe Glass
  • Date: 19-02-2013
  • Size: 82 KB
  • Platform: PHP, Scripts

Add, move and delete points to form a desired spectral curve. The result can be saved to workspace as linear or minimum phase FIR..

  • Publisher: Matthes
  • Date: 21-06-2013
  • Size: 10 KB
  • Platform: Matlab, Scripts

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