smooth_update

采用国际标准测试图lena进行测试。分别使用白平衡法、最大颜色值平衡法进行色偏矫正。(lena,White balance mathod,max-color balance mathod.)

MATLAB经典教程，内容比较全面，易于自学，能够帮助你精通MATLAB(MATLAB Tutorial classic, content more comprehensive, easy to self-learning, can help you proficient in MATLAB)

simulink 采样系统的一个简单的例证，采样周期为0.1，使用了保持器(simulink sampling system, a simple example, the sampling period is 0.1, the use of retainer)

基于SIRP方法的相干相关K分布雷达杂波的建模与仿真程序，包含三个文件。主文件为K_distribution.m，两个函数文件nonline_eq_sirp.m，fseries.m。(K-distribution radar clutter simulation code based on SIRP method,including three files. The main file is K_distribution.m, the two function files are nonline_eq_sirp.m，fseries.m respectively.)

以中等纯度的精馏塔为研究对象，考虑到不等分子溢流的影响和非理想的汽液平衡，可以得到塔顶产品轻组分含量Y与回流量L之间的传递函数为： 控制要求： 1.采用积分分离 PID控制算法将塔顶轻组分含量Y控制在0.99 2.采用继电法整定PID参数 3.整定效果验证：当被控过程参数时变时，如滞后时间由4→8，开环增益由3.4→6时, 讨论PID控制的响应速度及鲁棒性问题，考察当系统参数发生改变时，上述PID参数是否选取合适。 (Moderate purity fractionator as the object of study, taking into account the ranging molecular overflowing and non-ideal vapor-liquid equilibrium can be obtained by the transfer function between the content of light components of the overhead product Y and back to the flow L: Control Requirements: 1. integral separation PID control algorithm to control the top of the tower light component content Y 0.99 2. relay Law tuning PID parameters. tuning effect is verified: change When accused of process parameters, such as the lag time from 4 → 8, the open loop gain discussed from 3.4 → 6, the PID control of the response speed and robustness issues investigated when the system parameters are changed, the PID parameters select appropriate.)

本文主要讨论获得图片后如何提取其边界信息，首先利用图像灰度均匀化解决了对比度不清晰的问题，然后利用高斯滤波法对图片进行滤波去噪，进而利用Canny算法实现边缘检测提取边界，该方法与Matlab自带的求边界方法有明显的提高，为利用Matlab程序求图像分形维数提供了更精确的前提。(This article focuses on how to get the image to extract the boundary information, the first to use to the gray uniform solve the contrast is not clear, and then use the Gaussian filter image filtering noise, and then use the Canny edge detection algorithm to extract the boundary of the and Matlab comes boundary method has increased significantly, and provide a more accurate premise for the use of Matlab program for image fractal dimension.)

使用matlab演奏李玉刚的贵妃醉酒，亲自测试可以演奏，虽然不如卡农那个版本完全，但是音准基本正确(To Li Yugang Drunken Beauty matlab played personally test can play, although not as good as the Canon version completely, but the pitch is basically correct)

生成进制数为4，调制指数为1的4CPFSK信号(Generate a hexadecimal number is 4, the modulation index for 1 4CPFSK signal)

matlab生成四种波形的mif文件，供fpga中rom仿真使用(Matlab generates four waveform mif files for use in fpga rom emulation)

课程设计时编写的matlab程序代码，供做算法研究人员参考，小波包分析提取振动信号中的特征频率。( Course designed to prepare the matlab program code, Algorithm for researchers to do reference, Wavelet packet analysis to extract vibration signal characteristic frequency.)