搜索资源列表
preprint
- 详细表述了分数阶傅立叶变换的离散实现，将现有的算法进行比较。-In this note we make a critical comparison of some matlab programs for the digital computation of the fractional Fourier transform that are freely available and we describe our own implementation that lters the bes
FreTrans
- 对图片进行灰度变换，并实现FFT变换与傅立叶反变换-Gray-scale transformation of the picture and realize FFT transform and Fourier inverse transform
stft
- 本程序是一个用短时傅立叶变换实现的心音时间、频率分析-This program is a short-time Fourier transform implemented with the heart sound time frequency analysis
VCFFT
- vc写的快速傅立叶变换篇, 二维傅立叶变换-vc write articles fast Fourier transform, two-dimensional Fourier transform
F
- 基于混合基算法的快速傅立叶变换和反变换在VDSL2中的应用与实现-Mixed-radix FFT-based fast Fourier transform and inverse transform in the application and implementation of VDSL2
imaginationorthogonaltransformation
- MATLAB 图像正交变换 正交变换通用算子 傅立叶变换 离散余弦变换 Walsh- Hadamard 变换 Radon 变换 小波变换 -MATLAB image orthogonal transform orthogonal transform generic operator Fourier transform discrete cosine transform Walsh-Hadamard transform Radon transform wavelet trans
lisanxinhaofuliyebianhuan
- 离散傅立叶变换(DFT)及其反变换的实现,有限长序列的循环移位、循环卷积-Discrete Fourier Transform (DFT) and its inverse transform of the realization of the cyclic shift sequence of finite length, circular convolution
st
- 一个短时傅立叶变换的MATLAB程序，可以进行信号的时频分析。-A short-time Fourier transform of the MATLAB program, can be time-frequency analysis.
fft
- fft电能质量检测，快速傅立叶变换，ad73-fft quality detection, fast Fourier transform, ad7366
dsp
- FFT快速傅立叶变换源码，可以直接调用。-FFT Fast Fourier Transform source code can be called directly
shibie
- 利用Matlab软件，具体实现对于给定图片的边缘提取、链接，同时计算计算图像中每个物体的边界长度、面积、矩，投影、近似圆形的离心率、紧致度和边界的傅立叶描述子。-Using Matlab software, the specific implementation for a given image edge extraction, linking, also calculated for each object in the calculation of the image boundary l
分帧函数、短时傅立叶变换函数
- 包含分帧函数以及短时傅立叶变换函数，即将采集到的信号进行分帧处理，并进行短时傅立叶变换(Including the frame function and the short-time Fu Liye transform function, the collected signals are processed by frame processing, and the short-time Fu Liye transform is carried out)
fft
- 实现傅立叶变换，信号处理，故障诊断技术及应用(Fu Liye transform, signal processing and fault diagnosis are realized)
fft-jishuzhankai
- 进行傅立叶级数展开运算,高效快捷，将复杂的数值问题进行傅立叶展开后，简易明了(Fu Liye series expansion is carried out,efficient and quick)
code
- 稀疏傅立叶算法，matlab实现仿真，对于算法重构用到了混叠同余法和相位解码法，并对SFFT和FFT算法对同一数据的处理时间进行了对比。(Sparse Fourier algorithm, matlab to achieve the simulation, the algorithm used for aliasing congruence and phase decoding method, and the SFFT and FFT algorithm for the same data pr
fly
- 关于傅立叶变换有关的图片处理，频谱显示。(Fourier transformation)
现代信号处理代码
- 短时傅立叶变换分析，时域分析通常用于最基本的参数分析及应用，如语音的分割、预处理、大分类等(Fourier transform time domain analysis)
fuliyedaxishubijin
- 将图像进行二维傅立叶变换，选取一定数量大系数，其余置零，然后还原图像。(The image is a two-dimensional Fu Liye transformation, select a certain number of coefficients, the rest to zero, and then restore the image.)
上传程序
- buffer滤波器的设计，语音分帧 ，短时傅立叶变换的程序(buffer filter design and Speech sub-frame)
E2-频域增强
- 一、 计算图象的频谱函数 设计图象120*30/256*256；选用Matlab函数直接调用实现。 二、根据计算证明傅立叶变换的性质 1， 共轭对称性: F(u,v)=F*(-u,-v) ; 三、图象的频域滤波 1， 设计一个指数低通滤波器，对两图象（f1(x,y)为30*30/256*256的图象；f2(x,y)=p3-02图象）进行低通滤波，观察分析空域图象和频谱分布的变化。 四、图象变换比较 利用现有的离散傅立叶变换、离散余弦变换、Walsh-Had