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二维快速傅立叶变换
- This document introduces the techniques of fast Fourier transform and gives a source code in C for computing 2D FFT on image data.
FFT1D
- 图象FFT——1D变换，快速变换针对2D图象-FFT image -- Transform 1D, 2D against rapidly changing images
fft_基2基4_2d3d
- 基2基4的2d、3d的fft快速算法，代码写的很规范，效率很高。
FFT2Dsource
- 二维FFT(快速傅立叶变换)变换源代码,可编译通过并能正常运行.-2D FFT (Fast Fourier Transform) transform source code, compile and can operate normally.
DCT2-lele
- 利用蝶形算法类似于FFT，利用先行再列实现二维DCT。速度很快。包含反DCT的代码。-similar to the use of butterfly FFT algorithm, the first re-use of 2D DCT out. Very fast. Contain anti - DCT code.
2007202131
- Image Compression A collection of simple routines for image compression using different techniques. 图象压缩的不同方法 BTCODE: Image compression Using Block Truncation Coding. PYRAMID: Image compression based on Gaussian Pyramids. DCTC
fftbasedconvolution
- - conv2fft.m ---> M-file for 2D FFT-based convolution - convfft.m ---> M-file for 1D FFT-based convolution-- conv2fft.m ---> M-file for 2D FFT-based convolution - convfft.m ---> M-file for 1D FFT-based convolution
FFT_IFFT.RAR
- 图像的傅立叶及反变换演示程序，包括了打开图像，现实幅度谱等功能-code for 2D image FFT and IFFT transforms.
tuxiangyasuo
- 一系列展示图像压缩技术的源代码。包括有：使用块截断编码的图像压缩(Block Truncation)、基于高斯金字塔变换的图像压缩(Gaussian Pyramids)、基于离散余弦变换对图像压缩(Discrete Cosine Transform)、基于奇异值分解(SVD)的图像压缩(Singular Value Decomposition)。给出的代码还可以用于2D图像噪声消除。-Image Compression A collection of simple routines
PhaseUnwrapping2D
- 2维傅立叶变换方法用于分析干涉条纹，相移计算。-2D FFT for fringe annalisys
bpf
- Source code of forward and backward 2D FFT with low or high frequency filter (run with pcx-file as parameter)
lab432
- Matlab动力系统和时间序列分析工具箱:这个工具箱用来分析动力系统和时间序列，它可以定制为：常微分方程、随机微分方程。所有分析的方法被封装在工具箱中，你可以通过命令行或GUI来调用。包含的功能： ODE常微分方程, SDE随机微分方程和map integration 分析时间序列，过滤、归一化/均衡化、直方图、2D直方图、ACF, MAI, FFT,最大lyapunov指数计算、模式识别。 动力系统分析：创建Poincare截面、分岔图、计算lyapunov指数。-The kit us
FFTDX10
- 2d FFT with DX10 (fastest fft algorithm)-2d FFT with DX10 (fastest fft algorithm)
conv2fft
- 基于二维2D的FFT卷积分，提供给大家参考，共同学习。-2D FFT-based two-dimensional volume integral, provided for your reference, learning together.
2D-FFT
- 构造一个线性调频信号作为差频信号进行2D FFT处理 -create a LSM signal. make 2D FFT of the signal above
FFT
- the matlab code attached show how to Display magnitude and phase of 2D FFTs, invers FFT and switch magnitude and phase of 2D FFTs
fft-code
- FFT算法实现,从txt文件中导入数据进行FFT，并且把需要的频谱图叠加画出二维三维图-FFT algorithm, import data txt file FFT is performed, and the required spectrum superposition shown in Fig. 2D and 3D
fft
- 对数字图像进行傅里叶变换，查看其频谱图及相位图。(Fourier transform of digital images, to see its spectrum and phase diagram.)
2D_FEKO_IFFT
- 用FEKO仿真，获得FFE文件，放到文件夹下，修改相应参数，即可成像 基本的2D IFFT成像算法(The FFE file is obtained by FEKO simulation. It is placed in the folder and the corresponding parameters are modified. Then the image can be imaged. Basic 2D IFFT Imaging Algorithms)
fft_2d_test
- fft_2d_test.m:对三角LFMCW雷达回波进行2维FFT处理，获得目标的距离速度信息(Perform 2D FFT processing on the triangular LFMCW radar echo to obtain the target distance velocity information)