Delta Sigma Theta Sorority
GAUSSian REALIZation of a random variable with standard deviation sigma and correlation length lambda
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 10 KB | Download (47): Gaussian realization of a random variable Download |
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. Higher number of data points will of...
Platforms: Matlab
License: Freeware | Size: 102.4 KB | Download (47): Fully Automatic Signal Spectrum Analyser Download |
With this function, you can get the value of L (wavelength), k (wave number), sigma(angular frequency), using different solutions of the dispersion relationship.Inputs: h = deep water (m) T = wave period (s)Outputs: kr = wave number with Newton-Rhapson (1/m) Lr = wavelength with Newton-Rhapson...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (47): Dispersion relationship for water waves Download |
There are two components in this group.1. Hohmann Transfer Example: This simulation starts with a craft/satellite in low earth orbit. A Hohmann Transfer is initiated to a 'random' destination altitude. This includes the delta V to move to a higher orbit, and then circularize the orbit once the...
Platforms: Matlab
License: Freeware | Size: 102.4 KB | Download (47): Hohmann Transfer Example & Figure-of-8 Orbit Example Download |
[G GWINLEN] = genGaborKernelF( MU,NU,sigma,scaleXY,imgSz )GIMG = GABORCONV(IMG,G,GWINLEN)Extract the texture feature using Gabor filter/wavelet. You should first generate cell array G, which is a set of kernels in freq domain, then pass G and the image to the function GABORCONV.
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 10 KB | Download (47): Filter with Gabor Kernel using FFT Download |
The algorithm takes in a 1-D signal and finds the Gaussian derivative of it with the given kernel size and sigma, to provide the zero crossings. The zero crossings are then analyzed to give peaks and valleys. In order to remove very closely situated peaks and valleys, a width (provided by the...
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 10 KB | Download (47): 1-D Gaussian peak and valley detector Download |
Using the delta operator, the strengthened discrete-time optimal projection equations for optimal reduced-order compensation of systems with white stochastic parameters are formulated in the delta domain. The delta domain unifies discrete time and continuous time. Moreover, when formulated in...
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 51.2 KB | Download (47): Continuous and discrete time optimal reduced order output feedback Download |
Create a custom 2D gauss, which can be used for filtering, weighting, etc. All parameters are customizable, including standard deviations (sigmaX, sigmaY), rotation (theta), result size, center, etc.
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 10 KB | Download (47): Custom 2D Gauss Download |
Recent studies on Mathematical modeling of visual cortical cells [Kulikowski/Marcelja/Bishop:1982] suggest a tuned band pass filter bank structure. These filters are found to have Gaussian transfer functions in the frequency domain. Thus, taking the Inverse Fourier Transform of this transfer...
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 10 KB | Download (47): 2D Gabor Filter Download |
It makes visualization of rotation with Euler angles. phi theta psi are changeable. Also it makes automatic conversion to axis-angle form of rotation. Any rotation can be represented as axis of rotation and angle of rotation. See euler_axis_angle_relationship.doc. Push "rules..." button.See also...
Platforms: Matlab
License: Freeware | Size: 102.4 KB | Download (47): Eular angles GUI Download |
This widget uses php-gd to generate a Sigma BC906 bike computer to show your bike statistics. The statistics can be entered by using the dashboard.Installation :Extract the zip archive in your WordPress plugins folder (wp-content/plugins) and then activate the plugin by using the WordPress...
Platforms: PHP
License: Freeware | Size: 10 KB | Download (46): Sigma Bike Computer Download |
Given 2 subscripts, j & k, KronD will return 1 if j == k and 0 if j != k.A very simple function with only a single if-else statement. Saves a bit of typing when the Kronecker Delta is needed.
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 10 KB | Download (46): Kronecker Delta Download |
These files are an adaptation of the ANOVA variance component estimators to be used in the analysis of genetic data, specifically Cockerham's 1969 Theta. Formulae were adapted from Sokal and Rohlf's 1995 Biometry, and test files from the book are given as reference.
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 10 KB | Download (46): ANOVA and variance components for genetic data Download |
secplot(theta, rho)Plot wedges of equal angular width (centered on each value in theta, which should be equally spaced), with the radii listed in rho.Addition input arguments are passed to 'set' which is run on the object handle returned by polar (used to do the plotting).Example:th =...
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 10 KB | Download (46): secplot Download |
This file explains how to run the demo shown in the July 2005 MATLAB Digest Article "Improving an Engine Cooling Fan Using Design for Six Sigma Techniques." You will need MATALAB, Statistics Toolbox, Curve Fitting Toolbox, and Optimization Toolbox to run all of the analysis. I recommend you view...
Platforms: Matlab
License: Freeware | Size: 696.32 KB | Download (45): Improving an Engine Cooling Fan Using Design for Six Sigma Technique Download |
Demo to perform very, very simple color detection in LAB color space. The RGB image is converted to LAB color space and then the user draws some freehand-drawn irregularly shaped region to identify a color. The Delta E (the color difference in LAB color space) is then calculated for every pixel...
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 358.4 KB | Download (45): Color segmentation by Delta E color difference Download |
fcnFirstOrderStatisticsFilter performs noise filtering on an image based on using First Order Local Statistics around a prespecified pixel neighborhood. The method is based on[1] J. S. Lee, "Digital image smoothing and sigma filter," Computer Vision, Graphics and Image Processing, vol. 24, no. 2,...
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 10 KB | Download (45): First Order Statistics Filter (Sigma Filter / Lee's Filter) Download |
For figuring everything electrical nothing else comes close. Try the free trial and see why engineers in some of the finest R&D laboratories in the world, industrial maintenance crews, power utilities, RF & audio engineers, circuit designers, telecom engineers, and Ham operators have rated it the...
Platforms: Palm OS 3.0, Palm OS 3.1, Palm OS 3.2, Palm OS 4.0, Palm OS 5.0, Palm OS 6.0
License: Shareware | Cost: $20.00 USD | Size: 419.84 KB | Download (45): Electrist Download |
This code optimises the parameters for the term structure of volatility (TSOV) applied to historical forward curves - see discussion in Harris in reference 1 below. TSOVs avaible are: TermType - 1 = sigma = A exp (-CT) - 2 = sigma = A exp (-CT) + D - 3 = sigma = (A + BT) exp (-CT) + DRequired...
Platforms: Matlab
License: Freeware | Size: 174.08 KB | Download (45): Term Structure of Volatility Calibration Download |
Creates a number of samples from a specified number of dimensions and centers them around a given mean, and within a given covariance range. You might not find it very useful, but hey, I need something to do this so why not.To use:You need to generate 1000 samples from a 3 dimensional Gaussian...
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 10 KB | Download (45): Multivariate Gaussian Distribution Download |