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[Other resource] spectral DL : 0: The Spectral Toolkit is a C++ spectral transform library written by Rodney James and Chuck Panaccione while at the National Center for Atmospheric Research between 2002 and 2005. The library contains a functional subset of FFTPACK and SPHEREPACK, including real and complex FFTs in 1-3 dimensions, and a spherical harmonic transform. Multithreading is supported through POSIX threads for the multidimensional transforms. This reference guide provides details of the public interface as well as the internal implementation of the library.
Update : 2008-10-13 Size : 480.88kb Publisher : 薛斌
[Communication-Mobile] fftgibbs DL : 0: To show Gibbs phenomenon, using FFTs to sum Fourier Give the curve plot at the end of the simulation
Update : 2008-10-13 Size : 948byte Publisher : 王有
[Communication] fftseq DL : 0: 基于matlab的各种模拟信号的产生，如阶跃信号，正弦函数，三角函数等-based on the Matlab the analog signal generated, as a step signal sine function, trigonometry, etc.
Update : 2025-02-19 Size : 1kb Publisher : 姚连喜
[Algorithm] spectral DL : 0: The Spectral Toolkit is a C++ spectral transform library written by Rodney James and Chuck Panaccione while at the National Center for Atmospheric Research between 2002 and 2005. The library contains a functional subset of FFTPACK and SPHEREPACK, including real and complex FFTs in 1-3 dimensions, and a spherical harmonic transform. Multithreading is supported through POSIX threads for the multidimensional transforms. This reference guide provides details of the public interface as well as the internal implementation of the library. -The Spectral Toolkit is a C++ Spectral transform library written by Rodney James and Chuck Panaccione while at the National Center for Atmospheric Research between 2002 and 2005. The library contains a functional subset of FFTPACK and SPHEREPACK, including real and complex FFTs in 1-3 dimensions, and a spherical harmonic transform. Multithreading is supported through POSIX threads for the multidimensional transforms. This reference guide provides details of the public interface as well as the internal implementation of the library.
Update : 2025-02-19 Size : 481kb Publisher : 薛斌
[Communication-Mobile] fftgibbs DL : 0: To show Gibbs phenomenon, using FFTs to sum Fourier Give the curve plot at the end of the simulation
Update : 2025-02-19 Size : 1kb Publisher : 王有
[Algorithm] FFTS DL : 0: 快速傅里叶变化！Fortran语言编写！ -Fast Fourier change! Fortran language!
Update : 2025-02-19 Size : 52kb Publisher : 刘鹏
[DSP program] DSP_RFFTTEST DL : 0: DSP算法 Exercise the rfft function for real FFTs-DSP Algorithm Exercise the rfft function for real FFTs
Update : 2025-02-19 Size : 1kb Publisher : vts
[Algorithm] ffts DL : 0: 变步长梯形求积法，并以exp(-x*x)为例计算求积分-Variable Step-trapezoidal quadrature method, and exp (-x* x) as an example for calculating the integral
Update : 2025-02-19 Size : 1kb Publisher : 953427
[Communication] c_FFT DL : 0: The code performs a number (ITERS) of iterations of the Bailey s 6-step FFT algorithm (following the ideas in the CMU Task parallel suite). 1.- Generates an input signal vector (dgen) with size n=n1xn2 stored in row major order In this code the size of the input signal is NN=NxN (n=NN, n1=n2=N) 2.- Transpose (tpose) A to have it stored in column major order 3.- Perform independent FFTs on the rows (cffts) 4.- Scale each element of the resulting array by a factor of w[n]**(p*q) 5.- Transpose (tpose) to prepair it for the next step 6.- Perform independent FFTs on the rows (cffts) 7.- Transpose the resulting matrix The code requires nested Parallelism.-The code performs a number (ITERS) of iterations of the Bailey s 6-step FFT algorithm (following the ideas in the CMU Task parallel suite). 1.- Generates an input signal vector (dgen) with size n=n1xn2 stored in row major order In this code the size of the input signal is NN=NxN (n=NN, n1=n2=N) 2.- Transpose (tpose) A to have it stored in column major order 3.- Perform independent FFTs on the rows (cffts) 4.- Scale each element of the resulting array by a factor of w[n]**(p*q) 5.- Transpose (tpose) to prepair it for the next step 6.- Perform independent FFTs on the rows (cffts) 7.- Transpose the resulting matrix The code requires nested Parallelism.
Update : 2025-02-19 Size : 4kb Publisher : ramya
[Other] FFTsAndIFFTbySystemFunction DL : 0: 采用OPENCV系统的正逆傅里叶变换的函数实现傅里叶正逆变换，写成了一个类。-adopt system functions to implement the FFTs and IFFTs.
Update : 2025-02-19 Size : 402kb Publisher : 薛琴
[Other] HightFilterAndLowFilter DL : 0: 实现正逆傅里叶变换，并在此基础上实现各种高低通滤波器，采用OPENCV实现。图像只针对2的整数次幂的方图-implement kinds of high filters and low filters in OPENCV based on implementing the FFTs and IFFTS.
Update : 2025-02-19 Size : 197kb Publisher : 薛琴
[Other] OPENCVDFT DL : 0: 采用OPENCV中函数DFT实现正傅里叶变换。-implement the FFTs by using DFT function in OPENCV .
Update : 2025-02-19 Size : 222kb Publisher : 薛琴
[Other] alii2 DL : 0: This appendix gives the waveforms and FFTs of spectral content of the he file alien_voices.c. The frequency response curves were produced using the MATLAB Filter Design Toolbox
Update : 2025-02-19 Size : 2kb Publisher : nadeem
[matlab] alie DL : 0: This appendix gives the waveforms and FFTs of spectral content of the he file alien_voices.c. The frequency response curves were produced using the MATLAB Filter Design Toolbox
Update : 2025-02-19 Size : 2kb Publisher : nadeem
[Other] alie3 DL : 0: This appendix gives the waveforms and FFTs of spectral content of the he file alien_voices.c. The frequency response curves were produced using the MATLAB Filter Design Toolbox
Update : 2025-02-19 Size : 2kb Publisher : nadeem
[Audio program] alie4 DL : 0: This appendix gives the waveforms and FFTs of spectral content of the he file alien_voices.c. The frequency response curves were produced using the MATLAB Filter Design Toolbox
Update : 2025-02-19 Size : 2kb Publisher : nadeem
[Other] alie5 DL : 0: This appendix gives the waveforms and FFTs of spectral content of the he file alien_voices.c. The frequency response curves were produced using the MATLAB Filter Design Toolbox
Update : 2025-02-19 Size : 2kb Publisher : nadeem
[Documents] jmsl DL : 0: jmsla collection of mathematical, statistical and charting classes, written in 100 Java, marketed by Visual Numeric, Inc. Includes linear algebra, zero finding, splines, ordinary differential equations, linear programming, nonlinear optimization, FFTs, special functions, regression, ANOVA, ARMA, Kalman filters-a collection of mathematical, statistical and charting classes, written in 100 Java, marketed by Visual Numeric, Inc. Includes linear algebra, zero finding, splines, ordinary differential equations, linear programming, nonlinear optimization, FFTs, special functions, regression, ANOVA, ARMA, Kalman filters
Update : 2025-02-19 Size : 9.77mb Publisher : lu
[Algorithm] oscilloscope_src DL : 1: 这是一个简单的应用我建立理解波的Windows音频API的基础知识，并获得一个快速傅立叶变换（FFT变换）的基本掌握。它的功能是：双缓冲绘图，取样的音频源，选择一个录音源使用搅拌机，FFT频谱计算阵列，并策划采样数据。 -This is a simple application I built to understand the basics of the Windows Audio WAVE API, and to get a basic grasp on Fast Fourier Transforms (FFTs). Features of the application are: double buffering graphics, sampling an audio source, selecting an audio recording source using the mixer, calculating the FFT spectrum array, and plotting sampled data.
Update : 2025-02-19 Size : 1.08mb Publisher : wu
[Other] Small-FFTs DL : 0: Compute large DFTs using small FFTs
Update : 2025-02-19 Size : 1.2mb Publisher : dfdqzp

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