Dft
Computes the DFT of N real values and returns the firstN/2+1 DFT coefficients. N is an integral power of two.
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (47): radix-2 DFT algorithm for real data Download |
Toolbox for MMSE estimators of DFT coefficients under the generalized Gamma densityThe toolbox can also be downloaded from: http://ict.ewi.tudelft.nl/~richard/The matlab files enclosed in this toolbox can be used to tabulate gain functionsfor clean speech complex-DFT, magnitude-DFT and magnitude...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (40): Toolbox for MMSE estimators of DFT coefficients under the generalized Gamma density Download |
EDFT (Extended Discrete Fourier Transform) algorithm produces N-point DFT of sequence X where N is greater than the length of input data. Unlike the Fast Fourier Transform (FFT), where unknown readings outside of X are zero-padded, the EDFT algorithm for calculation of the DFT using only...
Platforms: Matlab
License: Freeware | Size: 235.52 KB | Download (42): Extended DFT Download |
Solves the difficulty of computing and visualizing the DFT of an array that can be caused by (a) the units of frequency, (b) the mirroring effect, (c) the complex nature.% Inputs: -t, a time array evenly spaced 0:tstep:T% -x, the function array% -pl, {0,1} to display plot% Outputs: - f a...
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 10 KB | Download (49): DFT easy computation and display Download |
dftmat = DFT matrix of order N x N; N = Order of the matrix computes the DFT matrix of orer N x N; DFT matrix is a n x n matrix defined as Wn=[(Wn)^km] Wn=exp(-j*2*pi/n)Reference: Multirate Systems and Filter banks by P.P Vaidyanathan Pearson Education 1993 appendix A.6
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (47): Compute N x N DFT matrix Download |
main executing reference usage: executeMain.m--------------------------------------------------------------------------------The geometrical interpretation of the 1-D DFT may have been seldom seen or introduced. The utility demonstrates the visualization of the phenomenon.* Caveat:- Help section...
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 1.16 MB | Download (39): Geometrical interpretation of the 1-D DFT Download |
The SignalLab is a set of Visual C++ components for fast Digital Signal Processing (DSP) and data visualization. They allow fast complex signal manipulations with zero lines of program code. SignalLab consists of SiganlPlayer, SignalLogger, Signal Generator for Sine, Triangle, Square, DC and...
Platforms: Windows
License: Shareware | Cost: $370.00 USD | Size: 13.99 MB | Download (202): SignalLab VC++ Download |
A C++ implementation of Dynamic Field Theory (DFT), Amari kind of space-time continuous fields representing activation of populations in neural cortex. Source code for the GUI is available through SVN.
Platforms: Mac, Linux
License: Freeware | Size: 12.51 MB | Download (49): BADgui2 Download |
PyMOlyze is a graphical program to analyze the results of quantum chemistry (HF/DFT) calculations. Features include various population analyses, fragment analysis, monitoring structures during an optimization, and a simple, but powerful, XYZ editor.
Platforms: Windows, Mac, Linux
License: Freeware | Size: 10.19 MB | Download (55): PyMOlyze Download |
The overlap add and overlap save are the two generally implemented methods when the input is greater than the maximum processible block in MATLAB because of memory constraints.
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (46): Overlap Add Overlap Save methods implementation for block DFT processing Download |
DFT plays important role in DSP and used in wide variety of applications like correlation and spectral analysis. Understanding quantization errors in its computation is an important aspect of its design either for s/w or h/w implementation.A complex DFT of N points has N complex (4N real)...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (47): A 32 point FFT in embedded MATLAB using fixed point arithmetic 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.
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (52): Zoom Spectrum Download |
Compute the discrete Fourier transform at specified frequencies, not using fft.Why one may need this?(1) MATLAB fft function computes the amplitude of signals only (no phase).(2) Once having the recorded time-series data, one often uses fft to do the spectral analysis. However, the frequency set...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (43): DFT on a specified frequency Download |
Both functions caculate the Lomb normalized periodogram (aka Lomb-Scargle, Gauss-Vanicek or Least-Squares spectrum) of a vector x with coordinates in t, which is essentially a generalization of the DFT for unevenly sampled data.The codes are transcriptions from Fortran of the subroutines found in...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (49): Lomb normalized periodogram Download |
if you know the required length of your dft,you can use use this...
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 10 KB | Download (38): fft using dif Download |
DFT transforms one function into another, which is called the frequency domain representation, or simply the DFT, of the original function (which is often a function in the time domain). But the DFT requires an input function that is discrete and whose non-zero values have a limited (finite)...
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 10 KB | Download (42): Discrete Fourier Transform of a finite sequence Download |
Vibeplot presents a new and attractive way to visualize vibrational analysis from density functional calculations (DFT). It is especially targeted at the chemists. The interface can either be scripted or used interactively with QVibeplot.
Platforms: *nix
License: Freeware | Size: 14.88 MB | Download (33): Vibeplot For Linux Download |
PowerTerm InterConnect for Windows provides secure, seamless access to accounting, inventory management & other applications running on multiple hosts, e.g., IBM, Digital, UNIX and SCO. With extensive host system support it enables organizations to standardize on a single host access solution,...
Platforms: Windows
License: Shareware | Cost: $159.00 USD | Size: 9.73 MB | Download (782): PowerTerm InterConnect Download |
Delphi/C++ Builder VCL components library for fast Digital Signal Processing (DSP) and data visualization. Allows fast complex signal manipulations with zero lines of program code. SignalLab consists of SiganlPlayer, SignalLogger, Signal Generator for Sine, Triangle, Square, DC and Jaehne...
Platforms: Windows
License: Shareware | Cost: $350.00 USD | Size: 25.89 MB | Download (160): SignalLab VCL Download |
Wavosaur is a free and efficient audio editor for Windows : do digital audio editing and recording , add VST effects, repair and clean your audio, perform various operations with audio data, change sound in real time, masters your track, process your sounds with VST effects in real-time....
Platforms: Windows
License: Freeware | Size: 484 KB | Download (467): Wavosaur audio editor Download |