Search - 2d fft

[matlab] TwoDimIFFT

Description: 2D FFT and 2D IFFT in matlab. inputs are original data and block size. ex) block size = [8 8]
Platform: | Size: 231424 | Author: nishina | Hits:

[matlab] Polar-Fourier-Transform

Description: 基于MATLAB实现了极坐标下的傅里叶变换，对一个给定 n×n 的二维信号，其计算复杂度等价于笛卡尔坐标下的2D-FFT，可广泛应用于图像处理和分析。-A fast high accuracy Polar FFT algorithm is given in the software package written in MATLAB. For a given 2D signal of size n×n, the algorihtm s complexity is just like in a Cartesian 2D-FFT, which can be used widely in image processing and analysis.
Platform: | Size: 579584 | Author: 周清保 | Hits:

[matlab] Mixedthreshold_Image-Recovery

Description: 代码给出了基于混合门限带迭代步长的稀疏图像重构。特别地，压缩采样矩阵为抽样傅里叶变换矩阵，利用2D-FFT,大大降低了计算复杂度。-The mixedthreshold sparse image reconstruction with step is given in the package. In particular， the 2D-FFT is used to disign the sample matrix, which can reduce the computational compexity dramatically.
Platform: | Size: 28672 | Author: 周清保 | Hits:

[matlab] 2d_music

Description: 一种声源多维定位MUSIC算法宽带信号通过FFT转换为窄带信号，在通过普通的窄带处理求出信号的方位信息。注：这里的信号是wav格式的音频信号程序还没有实现加权谱空间 QQ：2395558091 资料共享哦！-Source 2D positioning music algorithm
Platform: | Size: 1024 | Author: 王刚 | Hits:

[Other] C-FFT--source-code-part1

Description: C实现快速傅立叶变换FFT FFT-1D FFT-2D 源代码第一部分-C to achieve the first part of the Fast Fourier Transform FFT FFT-1D FFT-2D source code
Platform: | Size: 19456 | Author: wx | Hits:

[Special Effects] fast-2d-fft-and-ifft

Description: 快速二维傅立叶变换和反变换实例-Fast two-dimensional Fourier transform and inverse transform instance
Platform: | Size: 9216 | Author: zhoujunming | Hits:

[Graph Drawing] uwbfft2

Description: 超宽带雷达信号二维FFT求速度和距离，速度补偿后的算法-Ultra-wideband radar signal 2D FFT for speed and distance, speed compensated algorithm
Platform: | Size: 1024 | Author: lucky | Hits:

[Other] 2dfft

Description: 二维fft变换，通过一维fft变换转换成二维fft变换。-2D fft transform, convert two-dimensional one-dimensional fft transform fft transform.
Platform: | Size: 414720 | Author: 张娜 | Hits:

[Software Engineering] 2D-FFT

Description: the code in this file can perform fft_2dilemention.it can be used to compress a image.
Platform: | Size: 8539136 | Author: xzj | Hits:

[2D Graphic] 2D-Fourier-Transform

Description: 基于matlab的数字图像的二维傅立叶变换(FFT)以及二维离散余弦DCT变换，提供里详细代码，.m文件-Matlab-based digital image two-dimensional Fourier transform (FFT) and two-dimensional discrete cosine transform DCT offers in detailed code,. M file
Platform: | Size: 326656 | Author: valeriechan | Hits:

[Algorithm] fft2

Description: 二维fft算法，运算效率高，输入输出为图像，方便修改和显示。-2d fft algorithm for bmp picture。
Platform: | Size: 3072 | Author: ironhand | Hits:

[matlab] Array-antenna-analysis-with-FFT

Description: 一维和二维阵列天线FFT分析，对不同间距的均匀阵列做了详细处理-1D and 2D array antenna analysis with FFT, and dealt with different inter-element distance.
Platform: | Size: 2048 | Author: 从此走 | Hits:

[GDI-Bitmap] FAST_fft

Description: 改进的2d fft算法，做了大量优化，效果也很好，具有很大的使用价值-Improved 2d fft algorithm, a lot of optimization, the effect is also very good, with a great value
Platform: | Size: 16132096 | Author: XXXXXX123 | Hits:

[MPI] CL_2D_FFT

Description: opencl实现二维傅里叶变换,GPU并行计算实现FFT-opencl 2D FFT
Platform: | Size: 78848 | Author: 王珂 | Hits:

[2D Graphic] compression

Description: Image Compression A collection of simple routines for image compression using different techniques. BTCODE: Image compression Using Block Truncation Coding. PYRAMID: Image compression based on Gaussian Pyramids. DCTCOMPR: Image compression based on Discrete Cosine Transform. IMCOMPR: Image compression based on Singular Value Decomposition. The given codes can be also used in 2D noise suppression. Notes: The function conv2fft performs a 2D FFT-based convolution. Type help conv2fft on MATLAB command window for more informations.-Image Compression A collection of simple routines for image compression using different techniques. BTCODE: Image compression Using Block Truncation Coding. PYRAMID: Image compression based on Gaussian Pyramids. DCTCOMPR: Image compression based on Discrete Cosine Transform. IMCOMPR: Image compression based on Singular Value Decomposition. The given codes can be also used in 2D noise suppression. Notes: The function conv2fft performs a 2D FFT-based convolution. Type help conv2fft on MATLAB command window for more informations.
Platform: | Size: 9216 | Author: keyvan | Hits:

[Algorithm] FFT-2D

Description: FFT Fast Transformation FFT FFT FFT FFT
Platform: | Size: 430080 | Author: Ry | Hits:

[matlab] FFT

Description: the matlab code attached show how to Display magnitude and phase of 2D FFTs, invers FFT and switch magnitude and phase of 2D FFTs
Platform: | Size: 939008 | Author: Run | Hits:

[Wavelet] fft-code

Description: 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
Platform: | Size: 4096 | Author: anin | Hits:

[Software Engineering] flat_array_dbf

Description: 面阵的幅度相位全控制自适应数字波束形成算法——对角加载 QRD-SMI 算法的研究；两种面阵唯相位(Phase-Only)数字波束形成算法——小相位扰动约束算法和期望方向增益最大约束算法的研究；面阵的数字多波束形成算法——二维 FFT 多波束的研究，以及 FFT 在可编程逻辑器件中的实现。 -Research of the adaptive digital beamforming algorithm, which control both amplitude and phase of each array element: diagonal loading QRD-SMI algorithm. ② Research of two Phase-Only DBF algorithms: small phase perturbation restriction algorithm and maximum gain of the expected direction restriction algorithm. ③ Research of multiple beams algorithm for planar array: 2D-FFT multiple beams. And the realization of FFT with CPLD.
Platform: | Size: 3404800 | Author: 313039 | Hits:

[Windows Develop] fft2

Description: 2d fft 和 1d fft，一维和二维离散基2fft-2d fft ， 1d fft
Platform: | Size: 241664 | Author: 刘振 | Hits:

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