Freeware Listing: Propagation
- A ODE system associated to PDE Electrical Propagation On Cable
- License: Freeware

It is application of the method of operator A of PDE linked to problem of Rc-network electrical propagation on cable.I will publish results computing online mathworks..
- Publisher: Dit Papa Lamine ndao
- Date: 20-04-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- FFT Beam Propagation Method
- License: Freeware

The zip file includes the next programs: BPM_free_space.m - Propagation of a gaussian pulse in free space BPM_triangle.m - Propagation of a gaussian pulse in a triangle index profile waveguide BPM_2step.m - Demonstration of the evanescent waves phenomenon in parallel rectangular waveguides BPM_Y_Branch.m - FFT-BPM in a Y-branch coupler BPM_mach_zender.m - FFT-BPM simulation of a mach-zender optical switchhttp://www.downloadplex.com/index.php?a=admin&b=programs&os=Scripts&add.
- Publisher: Edgar Guevara Codina
- Date: 19-03-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- MicroMUF HF Propagation Calculator
- License: Shareware

MicroMUF HF Propagation Calculator is a handy application designed to calculate the MUF and LUF values between two points. These frequency values are required for shortwave listening or your amateur radio.
After you enter the coordinates the program can also display a graph with the value of the Maximum Usable Frequency and the Lowest Usable Frequency.
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- Publisher: Tom Lackamp
- Date:
- Platform: WinOther
- Multiple Back-Propagation
- License: Freeware

Multiple Back-Propagation is an easy to use application specially designed for the training of neural networks with the Back-Propagation and the Multiple Back-Propagation algorithms.
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- Publisher: Noel Lopes
- Date:
- Platform: WinOther
- Hata and COST231-Hata Models
- License: Freeware

Hata and COST231-Hata Propagation Models. Two functions and two test scripts (with plots)..
- Publisher: Michal Bok
- Date: 03-02-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- Cardiac PDE VI1 And Computing With Matlab-Part1
- License: Freeware

I publish my ebook visible 20 % at google books about modeling the cardiac excitation propagation of modele PDE VI1.In mounths coming i will publish the matlab computing with the method of linear ODe dynamic system of PDE equation..
- Publisher: Dit Papa Lamine ndao
- Date: 17-06-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- radiation from infinitesimal dipole
- License: Freeware

this program shows the electric field propagation from infinitesimal dipole antenna.
- Publisher: ujwol palanchoke
- Date: 05-01-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- Scintillation Channel Modeling Utilities
- License: Freeware

A collection of utilities for computing the impact propagation disturbances on satellite radio transmissions. Applications include frequency and temporal coherence estimates and examples that use waveform simulations. Models for common fading distributions and waveform detection probabilities in noise and fading environments are included. Documentation and examples are included..
- Publisher: Charles Rino
- Date: 25-06-2013
- Size: 174 KB
- Platform: Matlab, Scripts
- Fabry-Perot Simulator
- License: Freeware

This program simulates Gaussian beam propagation through a Fabry-Perot interferometer with adjustable error angles. The result is the intensity behind the cavity at a screen perpendicular to the propagation direction. It contains a GUI for setting the parameters and viewing the result..
- Publisher: Birk Andreas
- Date: 02-04-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- Finite Differences Beam Propagation Method in 3-D
- License: Freeware

This set of simulations make use of the Alternating Direction Implicit method for solving the parabolic wave equation that arises in FD BPM. The zip file includes the following programs: FDBPM3D_free_space.m - Animation and video of the 3D propagation. FDBPM3D_free_space_slice.m - It shows slices of the propagated pulse. FDBPM3D_free_space_volume.m - It displays the laser beam as it would look in free space after a 1500 um propagation..
- Publisher: Edgar Guevara Codina
- Date: 24-04-2013
- Size: 92 KB
- Platform: Matlab, Scripts
- Neural Network for pattern recognition- Tutorial
- License: Freeware

Simple tutorial on pattern recognition using back propagation neural networks. the program has 3 classes with 3 images per class..
- Publisher: Alaa Eleyan
- Date: 27-01-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- Function Approximation Using Neural Network Without using Toolbox
- License: Freeware

This code implements the basic back propagation of error learning algorithm. the network has tanh hidden neurons and a linear output neuron, and applied for predicting y=sin(2pix1)*sin(2pix2). We didn't use any feature of neural network toolbox..
- Publisher: AliReza KashaniPour
- Date: 25-06-2013
- Size: 113 KB
- Platform: Matlab, Scripts
- Pulse Propagation in Nonlinear Media(GUI Based Application)
- License: Freeware

This gui based application incorporates all aspects of pulse propagation in Nonlinear media.It uses the master equation for pulse propagation under slow varying envelop approximation known as General Nonlinear Schroedinger equation.This helps you simulate propagation of chirped or non-chirped super-gaussian and hyperbolic-secant pulses in any medium or multiple media placed in succession. The application has two modules.First one helps you analyse the input pulses.One can load different pulses whose temporal and spectral width gets displayed against them in the list provided.The second module helps you choose from the loaded pulse and select the media.
- Publisher: Vishal Kumar Vaibhav
- Date: 22-01-2013
- Size: 20 KB
- Platform: Matlab, Scripts
- Conditional Density Propagation Tracker (1 Dimenstional)
- License: Freeware

Implementation of circular 1D tracker modeled after description in: @ARTICLE{Isard98condensation , author = {Michael Isard and Andrew Blake}, title = {CONDENSATION Conditional Density Propagation for Visual Tracking}, journal = {International Journal of Computer Vision}, year = {1998}, volume = {29}, pages = {5--28} } ---- Dynamic model is autoregressive 1 (AR1) and noise model is Poisson..
- Publisher: Prakash Manandhar
- Date: 18-02-2013
- Size: 82 KB
- Platform: Matlab, Scripts
- Pulse Propagation
- License: Freeware

This script simulates the propagation of an electromagnetic pulse in time and 2 spatial dimensions. The resulting movie is a map of the beam profile in the transverse direction (i.e. perpendicular to propagation) as a function of time at a given longitudinal position (i.e. along propagation axis). The result uses plane wave solutions to the wave equation, integrating over all possible directions and frequencies, computed using fast fourier transforms. The simulations can be used to help visualize how space-time-coupling (STC) affects pulse propagation. The idea can easily be expanded into 3 spatial dimensions (although the computational cost can become excessive).
- Publisher: Adam Wyatt
- Date: 07-02-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- Atmospheric Attenuation of Sound
- License: Freeware

A still atmosphere attenuates sound as a function of frequency, temperature, relative humidity, and propagation distance. This function uses equations published by Bass et al. to calcuate the attenuation of sound for the input parameters. The function returns the attenuation in decibels..
- Publisher: Nathan Burnside
- Date: 22-03-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- Neural Network Programs
- License: Freeware

Perceptron LMS Feed Forward Back Propagation Character Recognition.
- Publisher: Madhu S. Nair
- Date: 01-04-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- Control system for DC machine with current back-propagation and two levels of excitation
- License: Freeware

Control system for DC machine with current back-propagation and two levels of excitation is using in wide area of applications. It developed for modeling of robustness in power circuit of electrical engine. The action of electrical engine determined by stringent conditions of confidence intervals..
- Publisher: Sasha Zorin
- Date: 15-02-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- Error propagation function
- License: Freeware

First define a symbolic function f(u1,u2,...,ui) using the syms command. Next, define a vector u=[u1,u2,...,ui] containing all variables of f. Define an 1 x i row vector q=[q1,q2,...,qi], containing the values that the function will be evaluated in. Define also an sq=[sq1,sq2,...,sqi] vector, containing the uncertainty on every value in q. q and sq can also be m x i matrices (for varying values of qi and sqi). You can also have varying qi and a fixed sqi (the function will recognize if sqi is fixed (a row vector) or changing (a matrix). The function will output an m x 2 matrix with the first column containing f(q) and the second column the error propagation of f(q) using this formula: http://quicklatex.
- Publisher: Jan
- Date: 19-06-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- 4-Port VNA-Based NVNA (Nonlinear Vector Network Analyzer)
- License: Freeware

This particular NVNA measurement setup is referenced from the following: J Hu et al "Calibrated Nonlinear Vector Network Measurement Without Using a Multi-Harmonic Generator" to appear in IET Microwaves, Antennas & Propagation. It's also extensively described in the following: J Hu "Radio Frequency Front-End Measurement and Modeling," Ph.D. dissertation, North Carolina State University, Raleigh NC, 2011..
- Publisher: Jie Hu
- Date: 05-06-2013
- Size: 891 KB
- Platform: Matlab, Scripts
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