Fourier Transform Spectroscopy

With this Fourier Calculator a periodic signal can be analyzed and represented in figures with harmonics.The signals can easily be produced in the model. Platforms: Matlab

The function implement the 1D Walash Transform which can be used in signal processing,pattern recognition and Genetic algorithms. The Formula of 1D Walsh Transform is defined as : N-1 q-1 ---- -- 1 | | b[i](m)*b[q-1-i](u) W(u) = --- / f(m)| | (-1) ,u = 0,...,N-1 N ---- | | m=0 i=0 where for... Platforms: Matlab

The function implement the 1D Walash Transform which can be used in signal processing,pattern recognition and Genetic algorithms. The Formula of 1D Walsh Transform is defined in mfile Platforms: Matlab

computes the naturally-ordered discrete Hadamard transform Platforms: Matlab

It tries to approximate a f(x) function with a m term Fourier series, using the quad MATLaB function. Platforms: Matlab

PHP transForm is a form generator and processor that allows a website developer an easy way to view/add/edit/delete data in various databases.In order to use PHP transForm, you must be using at least PHP4.1.1.This PHP version includes the PEAR DB database abstraction code used by PHP... Platforms: PHP

The Fourier sine series model displays the sine series expansion coefficients of an arbitrary function on the interval Platforms: Mac

The Ejs Harmonics and Fourier Series model displays the sum of harmonics via a Fourier series to yield a new wave. The amplitude of each harmonic as well as the phase of that harmonic can be changed via sliders. In addition, several pre-set functions can be chosen to display. You can modify this... Platforms: Mac

The aim of the project is to provide open source collection of algorithms in the field of spectroscopy: data handling and processing, modeling and artificial intelligence tools. Platforms: Windows, Mac, Linux

An interactive tool to study Fourier Series and related physics phenomenons, using open source/free sorftware. Platforms: Windows, Mac, Linux

Transform SWF is an easy to use library for reading and writing Flash and Flash Video files. As of 25/11/2010 the latest version (3.0) can now be found at GitHub, https://github.com/StuartMacKay/transform-swf. Platforms: Windows, Mac, Linux

PHP transForm is a form generator and processor that allows a website developer an easy way to view/add/edit/delete data in various databases. In order to use PHP transForm, you must be using at least PHP4.1.1. This PHP version includes the PEAR DB database abstraction code used by PHP transForm.... Platforms: Windows, Mac, *nix, PHP, BSD Solaris

A fourier filter for time-series signals. Version 1.5, May 4, 2007, is calibrated specifically for time-based signals. Does not require the Signal Processing Toolbox. By adjusting the parameters, you can create lowpass, highpass, bandpass, and bandreject (notch) filters with variable cut-off... Platforms: Matlab

A computational method for quantitative analysis by multiwavelength absorption spectroscopy, called the Tfit method, based on fitting a model of the instrumentally-broadened transmission spectrum to the observed transmission data. It has the advantages of wider dynamic range and greatly improved... Platforms: Matlab

Program FFT2SURF plots double Fourier series representations for several different surfaces. The figures show effects of the number of series terms and use of Lanczos sigma factors to smooth Gibbs oscillations. The Fourier series of a doubly periodic function with periods px and py has the... Platforms: Matlab

The toolbox can import spectra acquired on spectroradiometers manufactured by Analytical Spectral Devices (ASD), Spectra Vista Corporation (SVC), Ocean Optics and the Field Spectroscopy Facility (FSF). It can post process spectra to calculate spectral reflectance, radiance and irradiance. It also... Platforms: Matlab

The Library is for Finite Transforms such as the Number Theoretic Transform (NTT) and others. Current modules include NTTW for NTTs with high resolution (microsecond) timing, basic array and imaging. The transforms are optimised for performance. Platforms: Mac

GFFT is generic simple and efficient Fast Fourier Transforms (FFT) implementation using policy-driven design and template metaprogramming. This new implementation of Fast Fourier transforms rose during study of the classical Cooley-Tukey algorithm and from an idea to assume the transform length... Platforms: *nix

Apache::AxKit::Language::SAXMachines is a Perl module that can transform Content With SAX Filters. SYNOPSIS # add the style processor mapping AxAddStyleMap application/x-saxmachines Apache::AxKit::Language::SAXMachines # add the processor AxAddProcessor application/x-saxmachines . #... Platforms: *nix

Bake is a small domain specific programming language for describing how to transform one file into another. Bake uses the typical topological sort, but has features that make describing this relatively easy. Bake has patterns, similar to make, but which are part of the dependency graph (unlike... Platforms: *nix