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Listing of Communication in Scripts

EDFT (Extended Discrete Fourier Transform) algorithm produces N-point DFT of sequence X where N is greater than the length of input data. Unlike the Fast Fourier Transform (FFT), where unknown readings outside of X are zero-padded, the EDFT algorithm for calculation of the DFT using only available data and the extended frequency set (therefore, named 'Extended DFT').

  • Platform: Matlab, 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

This is an example of EKF..

  • Platform: Matlab, Scripts

EZFFT(T,U) plots the power spectrum of the signal U(T) , where T is a 'time' and U is a real signal (T can be considered as a space coordinate as well). If T is a scalar, then it is interpreted as the 'sampling time' of the signal U. If T is a vector, then it is interpreted as the 'time' itself.

  • Platform: Matlab, Scripts

Appreciable errors in MSIS00 modeled temperatures can occur for altitudes above 75 km if solar flux and magnetic indices deviate significantly from their default values. This routine automatically downloads needed solar flux and magnetic indices from ftp.

  • Publisher: John Smith
  • Date: 16-03-2013
  • Size: 10 KB
  • Platform: Matlab, Scripts

A Fabry-Parot Filter consist of the cavity formed by two highly reflective mirrors placed parallel to each other , as shown in the figure 1.The input light beam to the filter enters the first mirror at right angles to its surface. The output of the filter is the light beam leaving the second mirror.

  • Platform: Matlab, Scripts

You can enter the probability of occurance of a group of symbols for the program and you will get the Fano code for each symbol. This is my first time to attach files to this category and hope that it will be useful for all..

  • Platform: Matlab, Scripts

The function implement the 2D dyadic(Paley) ordered fast in-place Walsh-Hadamard transform, which can be used in signal processing, pattern recognition and Genetic alogorithms. This algorithm uses a Cooley-Tukey type signal flow graph and is implemented in N log2 N additions and subtractions.

  • Platform: Matlab, Scripts

Uses fft to calculate the circular cross correlation of two periodic signal vectors.This is equivalent to xc(k)=sum(u1.*circshift(u2,k)), but much faster (on the order of 500 times faster for a 1024 point signal). The package also includes two examples.

  • Platform: Matlab, Scripts

This function convolves two very large vectors very quickly. Enormous gains in speed are due to the use of two fft's and an ifft. To find out how to use this program, put it in you 'work' folder and type "help fconv"..

  • Platform: Matlab, Scripts

This function deconvolves one extremely large vector out of another extremely large vector very quickly. Enormous gains in speed are due to the use of two fft's and an ifft. To find out how to use this program, put it in you 'work' folder and type "help fdeconv".

  • Platform: Matlab, Scripts

This function is written to understand and/or explain an fft algorithm and usage of radix2 procedure. This function take the signal which you want to find FFT, for m bit you can also call the function without entering a signal or number of points, because there is default values for y and m which are; y = sin(2*pi*50*t)+sin(2*pi*120*t); m=3; you can see the steps of order reversing used as built-in function but non others.

  • Platform: Matlab, Scripts

This program is open source code of fast Fourier transform in matlab. Where y is the input argument and p is the normalized size of the input. Let y = [1 2 3 4 ]; x= length(y); m= log2(x); p= ceil(m); To call the function use ft2(y,p);.

  • Platform: Matlab, Scripts

A recursive implementation of the Gaussian filter. This implementation yields an infinite impulse response filter that has 6 MADDs per dimension independent of the value of sigma in the Gaussian kernel. Recursive Gabor filtering for 1D and 2D signals.

  • Publisher: Luigi Rosa
  • Date: 04-05-2013
  • Size: 10 KB
  • Platform: Matlab, Scripts

A fast vectorized implementation of the ncc that handles color (3 channel) images as well as gray level. The algorithm for colored images is based on the ncc formulation for vector valued functions. Note: A bug that I found in the normxcorr2 was also fixed here.

  • Publisher: Rami
  • Date: 03-01-2013
  • Size: 10 KB
  • Platform: Matlab, Scripts

This codes written for testing probabilistic voter introduced in "Fault Masking By Probabilistic Voting" paper. It can be found at http://arxiv.org/abs/0901.1181.

  • Platform: Matlab, Scripts

FaxMaster is a PHP based web application that provides a frontend to HylaFax. Features include,sending a single fax, bulk fax via CSV import, preview before send, recipient estimate before send, and auto document conversion (PDF, PS, PRN, TIFF, TXT, DOC).

  • Platform: PHP, Scripts

FaxMaster is a PHP based web application that provides a frontend to HylaFax. Features include,sending a single fax, bulk fax via CSV import, preview before send, recipient estimate before send, and auto document conversion (PDF, PS, PRN, TIFF, TXT, DOC).

  • Platform: PHP, Scripts

This scrip determines the column vector 'x', given the LU decomposition of matrix 'A'. It performs the forward substitution, finding 'y=L*z', then, by backward substitution: 'z=U*x', determines the values of 'x'..

  • Platform: Matlab, Scripts

The DEMO includes 5 feature selection algorithms: * Sequential Forward Selection (SFS) * Sequential Floating Forward Selection (SFFS) * Sequential Backward Selection (SBS) * Sequential Floating Backward Selection (SFBS) * ReliefF Two CCR estimation methods: * Cross-validation * Resubstitution After selecting the best feature subset, the classifier obtained can be used for classifying any pattern.

  • 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

This package consist of a number of auxiliary functions that are helpful for analysing 1D and 2D signals such as surface profiles and surfaces and images. They are all built upon the built-in MATLAB FFT routine for fast execution and they replicate (when it is existing) the result produced by built-in MATLAB function to some extent or completely.

  • 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
  • FFTmt
  • License: Freeware
  • Price: 0.00
  • Rating

This mex file implements vectorized FFTs on multiple threads. When a matrix is passed to FFTmt, it is divided in "numCPU" and each fraction of the problem is executed in a separate thread Example: if numCPU = 2 and the matrix has 256x2^14 elements, 128 FFTs are performed in each thread, allowing the OS to distribute the load on 2 processors.

  • Platform: Matlab, Scripts

LP01.m, LP02.m, LP03m, LP11.m, LP12.m, LP13.m, LP21.m, LP22.m, LP31.m, LP41.m, LP51.m, LP61.m, LP71.m are the Matlab files that generate 2 and 3D images of the corresponding optical modes.

  • Platform: Matlab, Scripts

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

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

findFFT returns fft amplitude and frequency vectors from input data, with options to return normal fft, zeropadded fft, windowed fft, or both windowed and zeropadded to remove spectral leakage. IN data - vector containing information to perform fft on '-sampFreq',## - inputs sampling frequency of ##, if ## is not supplied default is 1 '-zeropad',## - option to zeropad data to ## times original size, if ## is not supplied default is 10 '-window' - Option to apply a windowing function to data 'windowtype' - string containing which windowing function to apply to data, must follow option '-window', if not supplied default is 'hann' OUT amp - vector containing amplitude values (y-axis) freq - vector containing frequency values (x-axis) Examples: [amp freq] = findFFT(data) [amp freq] = findFFT(data,'-sampFreq',10) [amp freq] = findFFT(data,'-zeropad',5) [amp freq] = findFFT(data,'-window','hamming') [amp freq] = findFFT(data,'-sampFreq',10,'-zeropad',5,'-window','blackman') Use plotFFTdifs.

  • Platform: Matlab, Scripts

this code will be helpful for finding the co-ordinate values of any gray level... some other result can also be obtained with this code , these are... 1..finding max histogram 2..finding min histogram 3..finding the co=ordinate values if more than one co=ordinate containing the same gray level.

  • Platform: Matlab, Scripts

C-Library & Matlab Toolbox implement a numerical solution of Poisson equation div(e*grad(u))=f for Cartesian 1D, Cartesian 2D and axis-symmetrical cylindrical coordinates with respect to steeply varying dielectrical permittivity e. Library uses regular rectangular grid with mixed boundary conditions, FVM-based equation discretization and iterative methods for solving sparse linear system.

  • Platform: Matlab, Scripts

Radix-4 FFT Test Script This file runs three versions of a Radix-4 FFT written in MATLAB: radix4FFT1_Float.m computes a radix-4 FFT for floating point data types radix4FFT2_FixPt.m computes a fixed point radix-4 FFT (requires Fixed Point Toolbox) radix4FFT3_FixPtEML.

  • Platform: Matlab, Scripts

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