Chapter_3

说明：  pid控制一个2阶系统，并将运行过程中不同观察值送入相应工作空间。(easy pid control.)

卡尔曼滤波器在目标追踪上的应用，目标真实运动为匀速直线运动，系统噪声为高斯白噪声。(Kalman filter for target tracking application on the target real motion is uniform motion, the system noise is Gaussian white noise.)

已知某系统传递函数G，可以调用改代码对系统进行降阶处理。功能同routh降阶相似，不过这里的分子阶次r和分母阶次k可以不止相差1。(Known transfer function of a system G, can call the code to deal with reduced-order system. Routh Reduction with similar features, but here the molecular order r and the denominator order k can be more than a difference of 1.)

本文是采用matlab开发的识别数字的识别软件，同时提供相应的样本数字图。(This article is developed using matlab digit identification recognition software, while providing the corresponding sample figures Fig.)

This code enables you to use the "new" and "delete" keywords in C++ to allocate and deallocate your memory. This enables you to create objects with constructors dynamically. Normally, using new and delete in MEX files might leak memory if the user presses Ctrl+C or the MEX file terminates with an error. This code modífies "new" and "delete" to register all allocated memory with MATLAB s memory manager. No modifications to existing C++ code is required.

用Hausdorff距离对两角点集进行配准，得到点集间的仿射变换，从而实现图像的自动配准。此算法以角点作为Hausdorff距离的配准特征，与直接选用边缘来配准的方法相比较，大大减小计算量。(Hausdorff distance on the corners with a point set registration, be affine transformation between sets in order to achieve automatic image registration. This algorithm is based corner as the Hausdorff distance matching characteristics, and use Edge to direct registration method of comparison, greatly reduced computation.)

Most practical filters exhibit steady roll-off characteristic, in contrast to the sharp transition from the pass and stop bands. The important families of filters are: Butterworth, Chebyshev and Elliptic. As part of this lab, we study and design Butterworth filters. Butterworth filters are simple to design and have a maximally flat pass band response. In contrast the Chebyshev and Elliptic filters are difficult to design and have ripples in pass/stop band but have sharper roll off characteristics than Butterworth filters.

this code is about k mean clustering in Matlab

基于鲍威尔法，现采用编程来计算最优解，matlab程序和简要说明文档。(Based on Powell method is used to calculate the optimal solution of programming, matlab program and a brief description of the document.)

数值分析最小二乘法的matlab编程实现(Least square method of numerical analysis matlab programming)