Delta Sigma Theta Sorority

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.... Platforms: Matlab

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

[MU, SIGMA, D] = TRUNCLOGNORMEST(DATA) returns the estimated parameters of the lognormal distribution, with unknown left truncation, using the sample data of percent of observations greater than observed quantities.DATA is assumed to be nx2 where the first column is a set of known values, and the... Platforms: Matlab

A few days ago I was in need of uniformly random points generation on the surface of sphere. I suddenly discovered that common parametrization with 2 angles is useless, it gathers too many points in the poles. At MathWorld you can find the complete demonstration, here the main lines:To pick a... Platforms: Matlab

This function segments (clusters) an image into object classes, and estimates and corrects for slow varying illumination artifacts. Estimates and corrects for bias field in 3D MRI, streak artifacts in CT, and illumination artifacts in color photos.It's an implementation of the paper of M.N. Ahmed... Platforms: Matlab

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

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

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

I was trying out modifications of the LMS algorithm so that it will converge faster and the mean square error will also be smaller. Getting to one of the drawbacks of LMS, that it has only one controllable parameter "mu", the selection of whose value will be the most critical from design point of... Platforms: Matlab

This package is a continues to be expanded. New examples include: VCO with user defined phase noise, impedance matching and filter design, interleaved ADC, clock multiplying delay lock loop, clock recovery for NRZ data. Further examples include: PLL, fractional N PLL, digital fractional N PLL,... Platforms: Matlab

Computes Disk Harmonic Functions; uses Bessel functions and derivatives Requires BessDerivZerosBisect2.mfunction dnm = DiskHarmonic(m,n,r,theta) if(m == 0) dnm = 1*Rnm elseif(m 0) dnm = sqrt(2)*Rnm.*cos(mu*theta) end m0: dnm(r,theta) = sqrt(2)*Rnm(r)*cos(m*theta) (m = |mu|) n = 0,1,2,... m =... Platforms: Matlab

Routine accepts input variables, binary target variable (0/1) and a small number of training parameters, and returns discovered coefficients for a single neuron.Technical details:Learning rule: incremental delta ruleLearning Rate: constantTransfer function: logisticExemplar presentation order:... Platforms: Matlab

Generates random 2D-paths between start and finish nodes according to densities distribution given by matrix C with leg's contrainsts defined by the adjacency matrix I.P = path_generator(start , finish , I , [C] , [K] , [V] , [delta]);Inputs-------start Index of starting points (r x 1) where... Platforms: Matlab

This will perform the same function as Matlab built-in function ATAN2 butsafely guarded against erroneous results when the inputs are very small (near to a machine zero).Due to the round off errors in the numerical calculations, the twoinputs to ATAN2, Y and X, had better be thought as x=x_exact... Platforms: Matlab

Conversion routines to take a surface (a function z of (x,y) or (theta,r)) and convert this into a solid; much as meshz does, but a little more useful for outputting as an STL for frabrication in a 3D printer. There are two cases, one in Cartesian co-ordinates, and the other in polar... Platforms: Matlab

The output figures will show effects of the number of series terms and use of the Lanczos sigma factors to smooth the Gibbs oscillations. Platforms: Matlab

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

BlockTools provides a simple programatic interface for retrieving individual blocks from the block system while retaining Drupal's block caching mechanism. Additionally, BlockTools provides per block caching that can be configured through each block's configuration form.To invoke blocktools,... Platforms: PHP

AJAX Select can enable CCK select fields with an AJAX feature to dynamically update the value of that field when viewing the node. It works by replacing the value of the field on the node view by a select field.CONFIGURATION 1. Visit http://[your-site]/admin/settings/ajax-select 2. Choose the... Platforms: PHP

Yet Another Cleaner is a all-in-one FREE professional tool to keep your PC safe, clean and fast, removes harmful files from your PC and repairing your operating system. Protects from browser hijacker, malicious plug-ins, malwares and different viruses. It can help you get rid of unwanted browser... Platforms: Windows, Windows 7