libMyAdd

汽车行驶工况识别S函数的M文件，根据车速和加速度判断汽车当前行驶的工况。(drive cycle identify)

MatLab 7, Creating Graphical User Interfaces

说明：  本文提出了一种基于混沌加密的DCT域二值图像数字水印算法.该算法首先利用混沌序列将含有版权信息的有意义二值图像水印进行加密,然后利用人眼视觉系统(HVS)的特性将原始载体图像进行块分类,最后将不同强度的水印分量嵌入到不同类的图像块DCT中频系数中去.利用混沌序列对水印进行加密,使水印本身具有安全性,对数字作品进行双重保障.通过高斯噪声,椒盐噪声以及JPEG压缩和剪切等攻击试验,表明了该算法具有较好的鲁棒性.(Encryption in DCT domain is proposed. Firstly, the meaningful binary image watermark containing copyright information is encrypted by using chaotic sequence, and then the original image is classified by using the characteristics of human visual system (HVS), Finally, the watermark components with different intensities are embedded into the DCT intermediate frequency coefficients of different types of image blocks. Chaotic sequences are used to encrypt the watermark, so that the watermark itself has security and double protection for digital works. Experiments on Gaussian noise, salt and pepper noise, JPEG compression and clipping show that the algorithm has good robustness)

This is a simple code for create window

利用fisher方法实现手写体数字多分类识别，采用mnist数据集(simple program using fisher)

基于粒子群算法的PID参数设置。其中程序比较先进。(Particle Swarm Optimization Based on the PID parameters. One of the more advanced procedures.)

该文件使用FIR滤波器滤除采集的心电信号中的工频干扰，实测滤波效果不错，不过并不能处理基线漂移。文件中提供了滤波器的定点系数。(The file uses the FIR filter to remove the collected ECG frequency interference, measured the filtering effect is good, but does not deal with the baseline drift. Document provides a fixed filter coefficients.)

说明：  PRACTICAL 3 CODES CONTROL SYSTEM

为了克服用硬件电路实现混沌信号的困难，本文采用MATLAB/Simulink 软件对蔡氏电路进行仿真研究。实验结果 表明，蔡氏电路结构简单，具有极其丰富的动力学行为，提高了通信的安全(In order to overcome the chaotic signal with a hardware circuit difficulties, we use MATLAB/Simulink software simulation of Chua' s circuit. Experimental results show that the Chua' s circuit structure is simple, extremely rich in dynamics, to improve the security of communications)

模拟车载移动信道产生的瑞利衰落，默认为6径衰落，移动速度可以设定，车载移动信道的仿真常用模型 (Simulate vehicle movement generated by Rayleigh fading channel, the default is 6-path fading, mobile speed can be set, in-car mobile channel simulation model used)