tuxiangyasuo

direct sequence spread spectrum

pricipal component analysis code writen in matlab

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.)

利用时域数据计算数组的RMS值，利用时域数据计算冲击功率谱密度的试验包络条件。(An array of time-domain data using the RMS value of the time-domain data using the power spectral density of the impact test conditions envelope.)

matlab编写的用霍夫曼变换检测圆的算法 对初学者有帮助(Function uses Standard Hough Transform to detect circles in a binary image. According to the Hough Transform for circles, each pixel in image spac corresponds to a circle in Hough space and vise versa. upper left corner of image is the origin of coordinate system.)

考虑微分方程在如下步长分布采用向前Eular、向后Eular，梯形公式、改进Eular和四阶龙格库塔方法计算近似值(procedure of approximate error using matlab)

vc与matcom混合编程实例，里面包含了matcom将matlab m文件转换成C++文件的例子，然后在vc中调用，画图，并借助matlab在vc中对音频文件进行幅度和相位分析(Vc mixed with matcom programming examples, containing the matcom transform matlab m file into the c++ file example, and then call in the vc, drawing, and with the help of matlab in the vc of amplitude and phase analysis was carried out on the audio file)

source code of rayleigh fading environment

authentication of digital data using water marking techniques

Foundations of Fuzzy Control - A Practical Approach (2e) (C3-PPTX)