This program calculates BER curve against SNR for QPSK Modulation in Gaussian Environment.It calculates 100 errors for for each SNR value before calculating BER. This gives a good approximation of BER.I hope this will help students alot.Please feel free to contact me should anyone has any queries.
|License: Freeware||Size: 10 KB||Download (21): BER Curve for QPSK in Gaussian Environment Download|
Calculate and plot BER curve against SNR for BPSK Modulation in Gaussian Environment.It calculates 100 errors to Calculate BER for every SNR value to ensure better approximation.I hope that this help students of signal processing and communications...
|License: Freeware||Size: 10 KB||Download (20): BER Curve for BPSK in Gaussian Environmen Download|
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. For more information please...
|License: Freeware||Size: 10 KB||Download (20): Fast Gaussian Filtering Download|
G3 = gauss3D(sz_X, sz_Y, sz_Z, a, prec);returns a 3 dimensional matrix being a gaussian bell curve where the width in the (x/y/z)-dimension is proportional to 1/a(1), 1/a(2) and 1/a(3), respectively. "prec" is the data precision.Default is a=[2.5 2.5 2.5] and prec='double'Examples:Cubic-shaped...
|License: Freeware||Size: 10 KB||Download (20): Gaussian window in 3 dimensions Download|
This script calculates BER for a numebr of SNR values in gaussian environment for QAM 16 Modulation.It calculates 100 errors for each BER measuremnet for better results.I hope this will be helpful for students of signal processing and communications alike.
|License: Freeware||Size: 10 KB||Download (18): BER Curve for QAM_16 in Gaussian Environment Download|
The Gaussian Wave Packet: Step Scattering model simulates the time evolution of a free Gaussian wave packet in position space when it is incident on a potential energy step. The position-space wave functions are depicted using three colors on the graph: black which depicts the absolute square of...
|License: Freeware||Size: 824.32 KB||Download (17): Gaussian Wave Packet: Step Scattering Download|
A simple software to extract useful data from gaussian log files.
Platforms: Windows, Mac, Linux
|License: Freeware||Size: 310 KB||Download (27): Gaussian ESI Automated Creator Download|
Gaussian Output Tools is a package of simple scripts to extract data from Gaussian output files.
Platforms: Windows, Mac, Linux
|License: Freeware||Size: 2.09 KB||Download (27): Gaussian Output Tools Download|
Gabedit is a Graphical User Interface to Gamess-US, Gaussian, Molcas, Molpro, MPQC and Q-Chem computational chemistry packages.Gabedit includes graphical facilities for generating keywords and options, molecule specifications and their input sections for even the most advanced calculation...
Platforms: *nix, C/C++, BSD
|License: Freeware||Download (31): Gabedit Download|
This program performs a Monte Carlo simulation of a coherent QPSK communication system and plot the error probability performance over additive whit Gaussian noise channel. The detection is based on correlation metric. Simulation is performed for 10,000 bits and measurements are made accordingly.
|License: Freeware||Size: 10 KB||Download (18): Coherent QPSK simulation and BER vs. SNR curve Download|
This function returns coefficients of Gaussian lowpass filter.Advantages of Gaussian filter: no ringing or overshoot in time domain.Diasadvantage: slow rolloff in frequency domain.Pass SR=sampling rate, fco=cutoff freq, both in Hz, to the function.Coefficients for FIR filter of length L (L always...
|License: Freeware||Size: 10 KB||Download (21): 1D Gaussian lowpass filter Download|
The GMM returns the cluster centroid and cluster variances for a family of points if the number of clusters are predefined. The centroid and variance can then be passed to a Gaussian pdf to compute the similarity of a input query point with reference to given cluster.
|License: Freeware||Size: 10 KB||Download (18): Gaussian Mixture Model Download|
The Gaussian Kernel can be changed to any desired kernel. However such a change will not dramatically improve results. This is a variant of ridge regression using the kernel trick (Mercers Theorem).
|License: Freeware||Size: 10 KB||Download (22): Kernel Ridge Regression Download|
Toolbox for log-spectral magnitude MMSE estimators under super-Gaussian densities.The toolbox can also be downloaded from: http://ict.ewi.tudelft.nl/~richard/log_spe...per_gaussV1.rarThe matlab files enclosed in this toolbox can be used to tabulate gain functions for log-spectral magnitude MMSE...
|License: Freeware||Size: 10 KB||Download (20): Toolbox for log-spectral magnitude MMSE estimators under super-Gaussian densities Download|
Fast Algorithm estimating the number of sinusoids in a white Gaussian noise. This algorithm use a sub-space method based on chi-square statistics of eigen values of the Autocorrelation Matrix.Example :clear, close all hiddenN = 512;L_vrai = 4;fe = 2000;F = (0:(fe/2)/(N/2-1):(fe/2));snr = [-10 -10...
|License: Freeware||Size: 10 KB||Download (19): Number of sinusoids Estimator Download|
The Expectation-Maximization algorithm (EM) is widely used to find the parameters of a mixture of Gaussian probability density functions (pdfs) or briefly Gaussian components that fits the sample measurement vectors in maximum likelihood sense . In our work, the expectation-maximization (EM)...
|License: Freeware||Size: 573.44 KB||Download (18): Gaussian Mixture Modeling GUI (GMM DEMO) Download|
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.
|License: Freeware||Size: 10 KB||Download (21): Finite Difference 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.
|License: Freeware||Size: 10 KB||Download (18): Fabry-Perot Simulator Download|
Matlab files include Gaussian numerical quadrature, Newton's method for finding roots, finite element method for 1D wave equation, and pattern formation (KPP anda system of two coupled PDEs).
|License: Freeware||Size: 624.64 KB||Download (20): Matlab files of the book: Mathematical Modelling for Earth Sciences Download|
Fit a multivariate gaussian mixture by a cross-entropy method. Cross-Entropy is a powerfull tool to achieve stochastic multi-extremum optimization.Please visit http://iew3.technion.ac.il/CE/ for more informationsi) Please compile mex-files by the mexme_ce_gauss.m (if compiler is not setup, run...
|License: Freeware||Size: 30.72 KB||Download (21): Multivariate Gaussian Mixture Model Optimization by Cross Entropy Download|