Time_Photo

说明：  锅炉汽包水位控制系统是火力发电厂中的一个重要的热工控制系统，汽包水位的 控制大多采用传统PID控制方式。但是，传统PID控制器参数的整定是在获取对象数学 模型的基础上，根据某一整定规则来确定的，不能进行在线调整，难以适应锅炉汽包 水位这样一个复杂多变的控制系统，其控制效果往往难以满足要求。 本文应用模糊控制技术，设计了一种二输入三输出模糊自整定PID控制器，对锅 炉汽包水位进行控制，实现了PID参数的自适应调节。利用MATLAB对控制系统进行 仿真。结果表明，该控制器自整定能力及鲁棒性比传统PID控制器更强，响应速度快、 精度高，同时对虚假水位有较好的控制效果。(Boiler water level control system is an important thermal power plant in the thermal control system, boiler water level Control most of the traditional PID control method. However, the traditional PID controller tuning parameters for objects in mathematics Model based on the rules to determine a whole and can not be adjusted online, it is difficult to adapt to the boiler drum Water level control such a complex system, its control effect is often difficult to meet the requirements. In this paper, fuzzy control technology, designed a two input and three output fuzzy self-tuning PID controller, the pot Steam drum level control, the PID parameters to achieve the adaptive regulation. The control system using MATLAB Simulation. The results show that the controller auto-tuning capability and robustness more than the traditional PID controller, fast response, High precision, while the water level has better control of false results.)

又一个simulink的ppt,对于初学simulink 的人可能有用，不过太简单了。(also a Simulink ppt for the novice Simulink may be useful But too simple.)

正弦函数，在0到2π区间，当有一个输入时，对应有一个输出，最后在matlab上显示出图像(Sine function, within the range of zero to 2 PI, when have an input, due to an output, and finally show the image in matlab )

混沌多步预测算法 可实现较为精确的多步预测 实用性较强(Chaotic multi-step prediction algorithm can achieve a more precise prediction of the multi-step practical stronger)

this book will help to get knowledge about digital design very deeply

说明：  m序列的小东西，用在SIMULINK里面(m sequence of small things, which in SIMULINK)

m序列加解密matlab编写的一个程序，用于m序列的加密和解密，功能简单些，希望对大家有帮助。(m sequence encryption and decryption matlab prepared a program for the encryption and decryption of m sequence, the function is simple, we want to help.)

matlab编写的时间序列动态弯曲算法，包含有使用说明(If you pass in 2 vectors it returns the unnormalized distance between the vectors, the accumulated distance between them, the length of the warping path (the normalizing factor), and the warping path points.)

matlab的学习资料，matlab的入门教程，适合于初学者的学习资料(of learning materials, matlab matlab introductory tutorial, suitable for beginners learning materials)

自己收集到的指纹预处理的各种方法，推荐给需要的朋友们。(Their fingerprints collected from the various methods of pretreatment, required to recommend friends.)