Fourier Transform Lab Student Edition is an advanced application designed for performing Fourier transformations, which can be useful in teaching Crystallography, since they are related to Optical Transforms (e.g. laser diffraction patterns). Furthermore one may get a quick hands-on experience...
|License: Freeware||Size: 6.8 MB||Download (53): Fourier Transform Lab Student Edition Download|
It tries to approximate a f(x) function with a m term Fourier series, using the quad MATLaB function. Requirements: - MATLAB 7.1.0 or higher
Platforms: Windows, Mac, *nix, Matlab, BSD Solaris
|License: Freeware||Download (37): Fourier Series Calculator Download|
Finding the Fourier transform of a rectangular pulse..filtering the spectrum and regenerating the signal usingthe filtered spectrum is done...at the end Rayleigh theorem is proved by showing that the energy content of both time domain and frequency domain signals are equal..your comments are...
|License: Freeware||Size: 215.04 KB||Download (19): Fourier Analysis of a Rectangular Pulse Download|
According to shannon theory it is possible to reconstruct a band limited signal from its Fourier components provided it is sampled sufficiently...just to demonstrate this, posting a small example based on that
|License: Freeware||Size: 10 KB||Download (19): Fourier reconstruction of Bandlimited function Download|
These are two M-files d-deDUfourier1d-deDt and d-deDUfourier2d-deDt The first is designed to demonstrate how triangular, rectangular, saw tooth, half wave and full wave rectified signals can be built from superposition of a predefined no of Fourier harmonic terms. It demonstrates how increasing...
|License: Freeware||Size: 10 KB||Download (19): Demonstration of Fourier transformation Download|
The Fourier Calculator (Simulink model) can be used for arbitrary signals. In this case the Wolfer sun spot data are analyzed
|License: Freeware||Size: 993.28 KB||Download (19): Wolfer sun spot data analyzed with the Fourier Calculator Download|
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.
|License: Freeware||Size: 10 KB||Download (20): Fourier Calculator for periodic signals Download|
This program is open source code of fast Fourier transform in matlab.Where y is the input argument and p is the normalized size of the input. Lety = [1 2 3 4 ];x= length(y);m= log2(x);p= ceil(m);To call the function useft2(y,p);
|License: Freeware||Size: 10 KB||Download (24): Fast Fourier Transform Algorithm Download|
It tries to approximate a f(x) function with a m term Fourier series, using the quad MATLaB function.
|License: Freeware||Size: 10 KB||Download (21): Fourier Series Calculator Script Download|
The Fourier sine series model displays the sine series expansion coefficients of an arbitrary function on the interval
|License: Freeware||Size: 1.4 MB||Download (17): Fourier Sine Series Model Download|
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...
|License: Freeware||Size: 1.34 MB||Download (17): Harmonics and Fourier Series Model Download|
This applet incorporates some image processing techniques in the Fourier optics domain. You can compute and see the Fourier transform of an object and the convolution between two images. You can also simulate the Vander Lugt correlator (matched filter, phase-only filter and inverse filter) and...
|License: Freeware||Size: 10.24 KB||Download (20): Fourier Optics Download|
GFourier can help you use Fourier Analysis for image restoration. GFourier calculates the Fourier Transform of a given image and allows the use of filters in the frequency domain. The Inverse Fourier Transform is then used to substitute original image.. Get GFourier at SourceForge.net. Fast,...
|License: Freeware||Size: 65.54 KB||Download (210): GFourier Download|
This program transforms the images and the sounds using single BIG Fourier Transforms (or DCT/DST,etc.). It produces very interesting and strange effects and allows you to transform sounds to images and vice-versa. To see what it does see the examples .
|License: Freeware||Size: 51.2 KB||Download (85): HyperMammut Download|
PDL::FFTW is a PDL interface to the Fastest Fourier Transform in the West v2.x. This is a means to interface PDL with the FFTW library. Its similar to the standard FFT routine but its usually faster and has support for real transforms. It works well for the types of PDLs for which was the...
|License: Freeware||Size: 2.1 MB||Download (127): PDL::FFTW Download|
An interactive tool to study Fourier Series and related physics phenomenons, using open source/free sorftware.
Platforms: Windows, Mac, Linux
|License: Freeware||Size: 1.69 MB||Download (36): fourier Download|
This program calculates the non-destructive zoom Fast Fourier transform of a time history.The input file must be time(sec) and amplitude(units)Reference: Randall, Frequency Analysis, Bruel & Kjaer, page 170.
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Radix 2 FFT using Decimation in FrequencyTruly Appreciates the Wonder Geniuses Joseph Fourier & Cooley Tuckey
|License: Freeware||Size: 10 KB||Download (18): Radix 2 FFT Decimation In Frequency Download|
This function returns N point DFT samples of 2dw band of Fourier transform of a sequence. Typically, fft() returns N samples of Fourier transform ranging from 0 to 2pi. This function takes the N-point DFT samples and returns N-point samples corresponding to frequency band wc-dw to wc+dw.
|License: Freeware||Size: 10 KB||Download (21): Zoom Spectrum Download|
[cg, psg] = crandn(rgau,m)Generate correlated Gaussian sequences by Fourier synthesis.Input parameters:rgau = correlation function - length n/2m = number of realisationsOutput:cg = m x n matrix containing m sequences of n correlated variates from a zero mean, unit variance normal distributionpsg...
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