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Computing-the-24
- 求DFT并做出离散函数xn的傅里叶变换图像 -Computing the 24-points DFTs of the two sequences that x1(n)= cos(nπ/6) and x2(n)= cos(nπ/4) using a single 24-point DFT by Matlab
dfdt
- 改程序为matlab实现离散信号的傅里叶变换 里面有注释以供初学者参考-The program for matlab discrete signal of Fourier transformation have comments for beginners in reference
tfristft
- 令x(n)=5exp(j*0.15*n*n)+6exp(j*300n-j*0.15*n*n) ,w(n)为高斯窗函数。试用matlab软件,取不同长度的窗函数,分别求x(n)离散短时傅里叶变换,并进行信号重构。-ORDER x (n) = 5exp (j* 0.15* n* n)+6exp (j* 300n-j* 0.15* n* n), w (n) for the Gaussian window function. Trial Matlab software, take different l
pinyu-bianhuan
- 实现了在matlab下音频信号的dct(离散余弦)和fft(傅里叶变换)相对matlab工具箱,有快速准确的效果。-Realized the dct (discrete cosine) of the audio signal in matlab fft (Fourier transform) relative matlab toolbox, fast and accurate results.
L
- 数字信号处理MATLAB实现 方波 离散时间傅里叶变换-MATLAB implementation of digital signal processing discrete-time Fourier transform square wave
2D-Fourier-Transform
- 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
Disfrft
- dfrft离散分数阶傅里叶变换的matlab程序,适合入门-Discrete fractional Fourier transform of the matlab program, suitable for entry
345
- 用matlab 实现离散时间傅里叶变换的例程,方便初接触者使用。这是我dsp课的大作业-Using matlab discrete-time Fourier transform routines to facilitate early contact to use. This is my big job dsp lesson
MATLAB
- matlab开发环境,.编程实现二维DFT的变换,并与标准函数结果fft2进行比较,基本傅里叶、离散余弦变换,空域(完成两个程序) 增强噪声后再进行处理,利用标准函数,求图像阈值分割、边缘检测的基本使用(lena256.bmp,方法:graythresh、edge),求分水岭,利用标准函数dwt2、idwt2分解图像man_pic.jpg,基本 BP-BPbase1 -matlab development environment. Programming dimensional DFT
chengxufrftfrftchengxu
- 程序附带各类分数阶傅里叶变换程序,采用matlab编制,可实现各类分数阶离散形式的数值实现-Program with various types of fractional Fourier transform procedure, using matlab preparation can be realized in the form of various types of fractional discrete numerical implementation
tuxiangbianhuan
- 在matlab上将图像从空间域变换到频率域,主要包括Radon变换和反变换、傅里叶变换和反变换、离散余弦变换和反变换等-In matlab image will be transformed the spatial domain to the frequency domain, including the Radon transform and inverse transform, Fourier transform and inverse transform, the discrete co
dsp
- 数字信号处理matlab例程,含离散时间傅里叶变换、光谱分析、数字滤波器设计-Digital signal processing matlab program, including the discrete-time Fourier transform, spectral analysis, digital filter design
tuxiangZengqiang
- 本文是基于MATLAB的GUI来对不同的(彩色或灰色)图像进行图像增强的相关处理,主要包括以下四点: 频域变换:傅里叶变换和离散余弦变换及其反变换,可将图像在空域上的特性转化到频域上; 叠加噪声:对图像添加高斯噪声和椒盐噪声; 空域滤波:对噪声污染后的图像添加不同模板下的平滑滤波和锐化滤波,可选择不同模板尺寸; 频域滤波:对噪声污染后的图像添加理想低通滤波器、巴特沃斯低通滤波器、理想高通滤波器、巴特沃斯高通滤波器、带通滤波器、带阻滤波器等,可实现平滑图像的效果。-This art
jiachaung
- 令 ,w(n)为高斯窗函数。试用matlab软件,取不同长度的窗函数,分别求x(n)的离散短时傅里叶变换,并进行信号重构。试讨论窗函数长度对时频分辨率、重构精度的影响。-Order, w (n) is Gaussian window function. Try matlab software, takes a different length of the window function, respectively, find x (n) short-time discrete Fourier
frft
- 分数傅里叶变换离散算法的MATLAB实现-the discrete implement of fractional fourier transform
myfunc
- 自己编写的函数包,包括傅里叶逆变换,傅里叶变换,离散信号的处理函数-the function of matlab. including dft,dtft,stem and so on.
heimie_v69
- 分数阶傅里叶变换计算方面,关于非线性离散系统辨识,利用matlab针对图像进行马氏距离计算 。- Fractional Fourier transform computing, Nonlinear discrete system identification, Using matlab to calculate the Mahalanobis distance for the image.