Search Results for "fourier transform fortran code"
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Showing 26 open source projects for "fourier transform fortran code"
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NumPy
The fundamental package for scientific computing with Python
Fast and versatile, the NumPy vectorization, indexing, and broadcasting concepts are the de-facto standards of array computing today. NumPy offers comprehensive mathematical functions, random number generators, linear algebra routines, Fourier transforms, and more. NumPy supports a wide range of hardware and computing platforms, and plays well with distributed, GPU, and sparse array libraries. The core of NumPy is well-optimized C code. Enjoy the flexibility of Python with the speed of compiled code. NumPy’s high level syntax makes it accessible and productive for programmers from any background or experience level. ... -
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FFTW++ is a C++ header class for the FFTW Fast Fourier Transform library that automates memory allocation, alignment, planning, wisdom, and communication on both serial and parallel (OpenMP/MPI) architectures. In 2D and 3D, hybrid dealiasing of convolutions substantially reduces memory usage and computation time. Wrappers for C, Python, and Fortran are included.
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DataFrame
C++ DataFrame for statistical, Financial, and ML analysis
This is a C++ analytical library designed for data analysis similar to libraries in Python and R. For example, you would compare this to Pandas, R data.frame, or Polars. You can slice the data in many different ways. You can join, merge, and group-by the data. You can run various statistical, summarization, financial, and ML algorithms on the data. You can add your custom algorithms easily. You can multi-column sort, custom pick, and delete the data. DataFrame also includes a large... -
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paraffin
Iterative and recursive parallelism generics for Ada 2005 and Ada 2012
A suite of Ada 2012 generics to facilitate iterative and recursive parallelism for multicore systems and provide safer recursion for single and multicore systems. Generics include Ravenscar compatible versions for real-time systems. Also Includes paraffinalia, which is a set of useful generics for parallel quicksort, fast fourier transform, function integration, prefix sum, and Red-Black trees -
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rx2fits
HF/VHF spectrosopy code for the rx888mk2 direct-sampling receiver
rx2fits is an SDR code for the rx888mk2 direct-sampling receiver that streams spectral data with frequency up to 65 MHz to FITS files. This code is for the direct-sampling input of the receiver, which transmits real samples over USB3 at up to 130 MHz sample rate. rx2fits processes these samples to spectral intensities via a Fourier-transform poly-phase filter bank, which provides spectral resolution approaching the spectral bin width with good stop-band and adjacent-channel rejection. ... -
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C++ FFT
C++ radix 2 & 3 multi-dimension complex FFT & graphical test program
This C++ code does radix 2 & 3 multi-dimension (any) complex FFT and its inverse. Array dimensions with sizes that are not 2^m 3^n are automatically zero-padded to the nearest larger size integer of the form 2^m 3^n. The new array has the original data centered, except when a dimension size is increased by an odd number, the zero padding on the left is one less than the zero padding on the right. This FFT code is in is own namespace and is in one source file and one include file. There is... -
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FFTW_Ada
An Ada 2012 binding to the FFTW fast Fourier transform library
FFTW_Ada is an Ada binding to the FFTW (fast Fourier transform) library written at MIT by Matteo Frigo and Steven G. Johnson. FFTW is written in C. FFTW_Ada allows calls to FFTW from an Ada program, thus allowing Ada code to compute fast Fourier and certain other related transforms. FFTW_Ada v2 works with FFTW v3 and requires Ada 2012. -
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libdspl-2.0
libdspl-2.0 is opensource cross-platform digital signal processing alg
libdspl-2.0 — opensource cross-platform digital signal processing algorithm library, written in C language. Distributed under LGPL v3 license. This allows to use this library in all applications with dynamic linking. -
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Advanced Trigonometry Calculator
Precision Trigonometry: Advanced Calculator for Complex Math
Advanced Trigonometry Calculator is equipped with a user-friendly interface that allows for easy input of problems and instant computation. Professionals such as engineers who need to perform advanced trigonometric calculations in their work will find this tool extremely useful. ATC Online Alpha: https://advantrigoncalc.sourceforge.io/atc/ More info by clicking below: https://advantrigoncalc.sourceforge.io/ Advanced Trigonometry Calculator was only and always only developed by... -
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SpectralWorks
View, manipulate, analyze (LS fit, SVD, FT), and make figs of, spectra
Program for viewing, editing, manipulating, and analyzing absorbance spectra. Simple arithnetic includes making linear combinatins of up to 10 spectra. Advanced functions include fitting spectra as LC of standard basis spectra, singular value decomposition, Fourier transform, differentiation, integration, global fitting of 3D titration and kinetic data. Graphics features allow composing Figures and export to postscript files which can be converted to pdf, imported into photoshop for... -
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radio_vocoder_FFT
a vocoder + equalizer + FFT effects version of radio_chung
radio vocoder chung is a vocoder + linear equalizer(s) + FFT effect(s) version of radio chung free internet web radio stream url and audio file generic path player ( * ,mp3,*name*.ogg,wav,...) with dsp(s) (baxandall , resonance , automod , decay , flat , noisered , speed , feedback ) using bass.dll , gui_chung , FFTdll.dll fft fast fourier transform and freebasic .high quality small pitch shift shifting for radio url . added record, playrec, save as MP3 , feedback , anticlick . -
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resonance_chung free VST plugin effect
piano like variable dynamic reverb
resonance chung is a free gpl open source VST plugin variable dynamic reverb sound effect compatible with VST steinberg, fb_chungVST , midipiano_chung , freemp3_chung , dsp_chung , radio _chung music plugins support. It aims to simulate the increase of reverberation with the number of played notes like in a real acoustic piano . a quick fft small fourier transform is used to estimate a number of played notes and modify the reverb rate in real time. Is written in easy fast freebasic . -
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DarkF
DarkF is an FFT optical simulation code for GW inteferometers
...With the Fourier transform method, it is easy to obtain a propagated beam and we can use this code to simulate a simple or a complex system as a Fabry Perot cavity or Advanced detector, like Advanced Virgo, Advanced LIGO or Kagra. It can include reflection and transmission maps from measurements or real mirrors. -
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smib is one of the smallest and simplest computer algebra system in the world, but simple does not mean simplistic. Using smib you can explore many branches of mathematics (e.g. number theory, algebra, calculus, numerical analysis, differential geometry, probability and stochastic calculus) and also some physics (e.g. electromagnetism and quantum mechanics).. By simple you can understand easy to program (smib is a dynamically typed language, with strong affinity to recursivity, programs...
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vocoder chung is a small educational vocoder using discrete fourier transform FFT spectrum written in easy fast compiled freebasic . (24/12/2019) uses fast and accurate FFTdll.dll (28/03/2020) algorythmic voice cloning / change / morphing experiment added
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DSP Lab
Digital Signal Processing Simulation
DSP Lab is a digital signal processing simulation application created to simulate and visualize process of sampling and filtering analog signal using DSP system. This application is created to provide as a tool for educator and student to visualize and understand DSP system. Source code is available at https://payhip.com/b/9mPY -
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This is a recursive C++ source code of the Fast Fourier Transform algorithm allowing parallelization. Also a performance test and its results on my computer are provided. The Performance test suggest to use 4 threads for parallelization. With this one can beat the implementation in "Numerical Recipes in C++" for large signals with more than 2^16 / 2^17 / 2^18 samples depending on the hardware and software.
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MSU's Sparse Fourier Repository
The Home of DMSFT, AAFFT, GFFT, and MSFFT.
A collection of sparse Fourier transform codes developed by faculty at MSU. Currently codes for four different prototype sparse FFTs are here: 1.) DMSFT, implemented by Ruochuan Zhang. This is a fast, stable, noise robust, and *fully discrete* improvement on the ideas in GFFT below. It is THE BEST sparse FFT around!!! If you're looking for AAFFT, try this out first. 2.) -
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disp2sif
Stress intensity factor (SIF) calculation from crack tip displacements
The code implements Muskhelishvili's complex function approach to calculate 2D stress intensity factors (modes I+II) from crack tip displacement fields. Surface displacements can be used with a plane stress elastic model. The code uses power/Fourier series expansion and a conformal mapping of an ellipse onto a circle. -
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A More Accurate Fourier Transform
Computes Accurate Fourier Transform via Explicit Integration not FFT
Fourier transform methods are used to analyze functions and data sets to provide frequencies, amplitudes, and phases of underlying oscillatory components. Fast Fourier transform (FFT) methods offer speed advantages over evaluation of explicit integrals (EI) that define Fourier transforms. It has been shown recently that EI methods can be more accurate than FFT methods (Courtney and Courtney, A More Accurate Fourier Transform) for scientific data analysis and that EI methods can be implemented in reasonable times with modern computing power. ... -
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OCaml interface to FFTW3 -- the Fastest Fourier Transform in the West! (http://www.fftw.org/). The code is developed at https://github.com/Chris00/fftw-ocaml
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This is an Image Processing toolkit written in Java. The source code is intended to help you understand processes such as Color Inversion, Edge Detection, Fourier Transform, Morphological process, Laplacian Sharpening, Gaussian Noise Adding, and hist
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FFTL
Templated Fast Fourier Transform in C++
Now moved to GitHub: https://github.com/CoreyShay/FFTL Provides some relatively easier to use than normal templated FFT classes written in C++. This is currently still a work in progress, but the FFT portion (complex and real) both output the correct results, and the code executes very quickly, around only 30% or so slower than the much more difficult to compile FFTW on SSE enabled platforms. Though optimized code only runs on SSE (x86) based platforms, it's a very simple matter to port... -
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kernel_smoother
Binned Kernel Density Estimate via FFTW
The library implements multivariate kernel density estimates via fast fourier transform from http://www.fftw.org/ The main code is used for constructing jet templates for computing data-driven jet substructure estimate for QCD backgrounds. -
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Fast Matrix for Java
General purpose matrix utilities for Java in Parallel Computing
Fast Matrix for Java (fm4j) is a general-purpose matrix utility library for computing with dense matrices. fm4j encapsulated different underlying implementations and select the optimal one in run-time depending on the size of the input matrix. Moreover, fm4j employs Java (Tm) Concurrency to take advantage of the computation power of multi-cor processors.
