Beam Weights
Simulation of a gaussian pulse propagated in free space through 1000 um, using finite differences.Just run the script and you'll get a surface which is made up of the pulse propagated at 1 um steps.
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (43): Finite Difference Beam Propagation Method Download |
The zip file includes the next programs:BPM_free_space.m - Propagation of a gaussian pulse in free spaceBPM_triangle.m - Propagation of a gaussian pulse in a triangle index profile waveguideBPM_2step.m - Demonstration of the evanescent waves phenomenon in parallel rectangular...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (40): FFT Beam Propagation Method Download |
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.
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (39): Fabry-Perot Simulator Download |
Please let others rate your work. Rating your own stuff highly says nothing about the code, but perhaps drops you closer to the level of a spammer on the FEX like Marco. So let the rating system do its job. I know that you think your stuff is good. So does every eager high school student who...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (43): 0-1 Knapsack Download |
This demo gives a clear visual presentation of what happens during the Adaboost algorithms. It shows how the decision boundary, example weights, training error and base learner weights change during training.A selection of base learning algorithms are included: Linear Regression, Naive Bayes,...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (50): Boosting Demo Download |
PURPOSE: calculate local Moran's I for a local grid using a weight matrix.-------------------------------------------------------------------USAGE: m = moransI(grid, W, s);where: [grid] is the matrix to analyze [W] is the normalized weight matrix of the size the local Moran's I will be calculated...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (40): Moran's I Download |
This function which is based on the bilateral filter provided Douglas R. Lanman, Brown University, September 2006, will compute the weights based on one image to be used as bilateral filter weights on another image.
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 10 KB | Download (40): Joint Bilateral Filter Download |
A variation of Matlab's sph2cart, that transforms a vector of radar coordinates (Range, Azimuth, Elevation) to Cartesian coordinates (East, North, Up). Note the different definition of radar coords vs. spherical coords, which require this different function (see exact definitions within the help...
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 10 KB | Download (40): rae2xyz Download |
A variation of Matlab's cart2sph, that transforms a vector of Cartesian coordinates (East, North, Up) to radar coordinates (Range, Azimuth, Elevation). Note the different definition of radar coords vs. spherical coords, which require this different function (see exact definitions within the help...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (44): xyz2rae Download |
I need to thank Duane Hanselman for suggesting this great idea.Fminspleas is a simple nonlinear least squares tool that fits regression models of the formY = a1*f1(X,C) + a2*f2(X,C) + ... + an*fn(X,C)X can be any array, so it works on multidimensionalproblems, and C is the set of only...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (41): Fminspleas Download |
RLS is one of the great adaptive filter algorithms. In this file ,an experiment is made to identify a linear noisy system with the help of RLS algorithm. The weights of the estimated system is nearly identical with the real one.A reference is used to write the algorithm.
Platforms: Matlab
License: Freeware | Size: 51.2 KB | Download (39): RLS Algorithm Demo Download |
NLMS is one of the adaptive filter algorithms. In this file ,an experiment is made to identify a linear noisy system with the help of NLMS algorithm. The weights of the estimated system is nearly identical with the real one. Also , adaptive learning rate has been applied.A reference is used to...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (40): NLMS Algorithm Demo Download |
function W = euklid_W(ws,d,n)function W = euklid_invW(ws,d,n) PURPOSE: create an (inverse) euklidean distance spatial weight matrix (n x m 'moving-window' style matrix with distance to center cell weighted.) ------------------------------------------------------------------ USAGE: W =...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (45): Euklid (Inverse) Distance Weight Matrix Download |
Demonstrates the use of MATLAB's nested functions to create graphical tools with little coding. This example creates an efficient frontier from supplied data (or generates random returns if no inputs are supplied) and then allows the user to move a crosshair along the efficient frontier to view...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (42): Interactive Efficient Frontier Viewer Download |
Like polyfit.m but includes weighting of each data point.Summary----------------Find a least-squares fit of 1D data y(x) with an nth order polynomial, weighted by w(x).Usage-----P = polyfitweighted(X,Y,N,W) finds the coefficients of a polynomial P(X) of degree N that fits the data Y best in a...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (41): polyfitweighted Download |
Reporting tool, with leading indicators for each asset, for an example Quantitative Fund.This asset definition is read by the runregression.m matlab file submitted elsewhere and allows to compute correlation coefficients and assign weights to relevant indicators when doing forecasting.
Platforms: Matlab
License: Freeware | Size: 2.55 MB | Download (39): Asset Definitions for Forecasting Download |
BALLBEAM demonsrates Proportional-Derivative (PD) control as applied to a ball and beam simulation experiment. Execute by calling with no arguments.P and PD controllers are implemented which manipulates the beam angle in response to the position of the ball on the beam. The setpoint is indicated...
Platforms: Matlab
License: Freeware | Size: 61.44 KB | Download (39): ballbeam.m Download |
The archive contains sugenotune.m which is used to tune Sugeno-type FIS outputs. The used methods are ldivide, Kalman filter, pseudoinversion, Kaczmarz algorithm, and gradient descent methods. Though the user can supply sugenotune.m with his own methods.Remarks:- FIS with multiple outputs is...
Platforms: Matlab
License: Freeware | Size: 204.8 KB | Download (39): Sugeno-type FIS output tuning Download |
The toolbox implements a simple (Timoshenko) beam with rigid disks. The model computes the eigenvectos (modes) at various speeds of rotation incorporating various effects like gyroscopics, stiffness of bearings. The results are presented using 2d and 3d graphics.Please use this package for...
Platforms: Matlab
License: Freeware | Size: 624.64 KB | Download (42): Rotor Dynamics toolbox (RotFE) Download |
The function calculates the Global to Local coordinate transformation matrix for a beam in space. [x0,y0,z0] and [x1,y1,z1] are the coordinates of the beam ends. alpha is the twist over the axis perpendicular to the beam cross sectional area, usually set to 0.
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 10 KB | Download (41): Global to Local Coordinate Transformation Matrix Download |