Matlab-function

MATLAB simulation of group velocity dispersion in an optical fiber

a matlab code contains samples for signal processing

matlab仿真工具（simulink）的命令集(the command ofmatlab simulink)

ＭＡＴＬＡＢ编写的Ｓ正反变换程序，程序方便易懂(Pros and cons of changing the S written in MATLAB program, the program easy to understand)

自己编写的正弦函数的周期图法求功率谱密度的matlab程序，简洁明了，很容易看懂。(I have written a sine function periodogram seeking power spectral density matlab program, concise, easy read.)

说明：  提出了一种合理的载波相位调制优化方法。该方法结合了子模块的平衡控制，不仅显示了更好的电容电压平衡效果，而且还输出了信号。谐波含量较低。(A reasonable carrier phase modulation optimization method is proposed. This method combines the balance control of the sub-module, which not only shows a better capacitance voltage balance effect, but also outputs a signal. The harmonic content is low.)

该代码实现了以2为因子的图像升采样和降采样功能。 降采样包括使用平滑滤波器(with using the averaging filter)和不使用平滑滤波器(without using the averaging filter)两种方法。 升采样包括像素点直接复制(pixel replication method)和线性插值(bilinear interpolatoin method)两种方法。 降采样方法和升采样方法共有4种组合。程序运行后，给出了一个原始图片和四个结果图片。 图片1.原始图片。 图片2.平滑滤波器降采样&像素点直接复制升采样。 图片3.平滑滤波器降采样&线性插值升采样。 图片4.不使用平滑滤波器降采样&像素点直接复制升采样。 图片5.不使用平滑滤波器降采样&线性插值升采样。 (The code to achieve a 2-factor image upsampling and downsampling function. Down-sampling (with using the averaging filter) and do not use smoothing filter (without using the averaging filter) are two ways to use the smoothing filter. Upsampling including the pixels copied directly (pixel replication method) and linear interpolation (bilinear interpolatoin method) two methods. Down-sampling method and liters a total of four combinations of sampling methods. The program is running, it shows a picture of an original picture and four results. Picture 1 original picture. Photo 2. Smoothing filter downsampling & the pixel directly copied liter sample. Photo 3. Smoothing filter downsampling & the linear interpolation liter sampling. Picture 4. Smoothing filter down-sampling & the pixels directly copied liter sampling. Picture 5. Use smoothing filter down-sampling & the linear interpolation liter sampling.)

控制系统的波特图绘制，3个m文件，由传递函数写出m文件，画波特图。(Bode drawing control system, 3 m file by file transfer function to write m, draw the Bode plot.)

在数学形态学分水岭变换是图像分割的有力工具。分水岭变换分割通常是标记控制分割。本文的宗旨包括图像增强和噪声去除技术与算子边缘检测的图像分割新方法。提出的方法计算并与现有方法相比。结果表明，该方法能有效降低对分割效果和实现比现有方法更准确的分割结果。 

convolution & correlation