Matlab

Add Gaussian white noise (mean=0 and variance=0.05 ) to the image using imnoise command. Now use fftshift command to put all zero frequencies in the middle. Low-pass filter this function by applying a mask saving only the central Fourier coefficients. Set the mask width to 255 and create the filtered image.

自写较为完善的STBC空时分组编码的MATLAB源代码，包括G2(Alamouti),G3(码率1/2),G4(码率1/2),H3(码率3/4),H4(码率3/4)的五种正交编码矩阵，调制方式有BPSK、QPSK、8PSK、16QAM，得出了仿真值的误比特率BER曲线，连带给出了所有调制方式和编码矩阵的理论误比特率BER曲线。(This is a matlab code for stbc,including five kinds of coding matrix: G2(Alamouti),G3(rate 1/2),G4(rate 1/2),H3(rate 3/4),H4(rate 3/4) and many kinds of modulation,such as BPSK,QPSK,8PSK,16QAM etc.I present all the simulative BER figures and theory BER figure.enjoy:))

一个用matlab编写双线性法求图像的放大与 缩小的小程序(Matlab bilinear used to prepare a method of shrinking the image to enlarge a small program)

matlab 程序汇编学习课程 下 自学matlab的最好资料(matlab study)

利用数学软件MATLAB对Lorenz系统等六个重要的混沌模型进行数值计算，同时模拟出各类混沌系统的独特性质，如混沌吸引子，倍周期，初值敏感性，相图，分岔图等。通过观察和分析上述特性，加深了我们对混沌现象的理解。(matlab Chaos Lorenz)

这是一个磁盘读取系统的仿真,可以画出系统响应图，进而分析系统！(This is a CD read system simmulink。It can analyse a system.)

to find the stability of the system using simulink file

电机的PWM控制：包括整流和逆变的闭环控制，MATLAB的仿真模型(PWM motor control: including closed-loop control of the rectifier and inverter, MATLAB simulation model)

matlab高级讲义，希望对初学者有用。里面有根讲义配套的程序代码(matlab advanced lectures, I hope it will be useful for beginners)

DDS(快速正交调制）生成正弦波形，利用相位累加字进行累加，查找查找表内容输出正弦数据，在通信领域应用很多，我采用的是matlab的simulink进行前期仿真(DDS (fast quadrature modulation) to generate sine wave, the use of the word to accumulate phase accumulation, content output sine lookup table lookup data in many applications in the communications field, I used to pre simulink of matlab simulation)