xinzifenxi

单纯形法整定pid参数,simulink环境,单纯形法很依赖初值的选取,在canshu.m中输入初始值。(Simplex method pid tuning parameters, simulink environment, simplex method is very dependent on the selection of initial value, in canshu.m enter the initial value.)

说明：  质子交换膜燃料电池系统的建模与仿真，采用Matlab中simulink进行模块搭建(Simulation of PEMFC)

本实例主要是MATLAB搭建的spwm模块 通过仿真 我们可以很清晰的看到该模块能将输入的正弦波和固定频率的三角载波进行比较 输出spwm波 结构简单 易于理解(this model mainly about the spwm generation.we can clearly see the spwm wave from the output and drive the IGBT.)

1) 已知x=[1:15], y=[12 34 56 78 99 123 165 198 243 277 353 345 303 288 275], 用多项式进行拟合，给出拟合多项式，(所选拟合多项式阶数不同，拟合结果不同，请你选择适当的阶数进行拟合)，并绘出原始数据点、拟合曲线和95％置信区间（confidence bounds）的图形 . 2) 根据下面数学模型建立仿真模型，并在一个示波器中把它们的波形仿真出来。 (1) are known to x = [1:15], y = [12 34 56 78 99 123 165 198 243 277 353 345 303 288 275], with polynomial fitting, given the polynomial fitting, (the election order polynomial fitting different fitting results to differ, please select the appropriate order of fit), and draw original data points, fitting curve and 95 confidence interval (confidence bounds) graphics .2 ) In accordance with the following mathematical model for the establishment of simulation model, and in an oscilloscope waveform in their simulation out.)

说明：  滤波方法的通用，值得大家学习 还可以在此基础上改进(Universal filter, is worth learning can be improved on this basis)

伪随机数发生器: “利用随机序列进行间隔控制，选择消息隐藏位”的描述算法、Matlab程序（可参考所给的程序）、原理与步骤(some thing about watermark)

Simulate DSM matlab file.

应用最大类间方差方法，对支票印鉴图像进行分割处理(Application of Otsu method, image segmentation seal check)

用于地震学中的正演波形计算和波形拟合，也可用于地震勘探中，用途广泛(a software that can forward the waveform )

作者写得还是很简练的，尤其是对新手，我就是看他的熟悉Matlab的。(It is practical for the beginners to start use the Matlab.)