greymodel

说明：  matlab用于电力系统的UPFC控制器仿真程序(matlab for power system simulation program UPFC controller)

说明：  利用matlab生成的随机数做蒲丰（buffon）投针问题．(Is Pu Feng using the matlab production s random number (buffon) to throw the needle question. )

提高MATLAB程序运行效率的方法大全。(A gathering of methods to shorten the processing time in MATLAB. )

Contents: A.zip: code compatible with Matlab 2007a and older B.zip: code compatible with Matlab 2007b and newer data.zip: test data instructions.pdf: this file Instructions: Unzip the selected file (A.zip or B.zip) in Matlab current directory (C:/.../Matlab/work is the default one). Type the name of main function on Matlab command window. Now a simple and intuitive GUI should appear. You can use images/data present in data.zip: just unzip them in Matlab current directory.

电力系统潮流计算 采取牛顿-拉弗逊法和PQ分解法 用matlab计算矩阵的功能，通过迭代方式求解。(power flow calculation taken Newton-Laffer Robertson and PQ decomposition matrix calculation using Matlab gong able, through iterative method to solve.)

利用双线性变换法，设计一个0.4dB截止频率为10kHz且在30kHz处有最小阻带衰减为50dB的数字巴特沃兹低通滤波器，其抽样率为100kHz。利用教材（4.35）式求解原型模拟滤波器的阶数，并利用Matlab的M文件buttap设计模拟原型滤波器。用M文件bilinear将模拟滤波器传输函数变换成期望的数字传输函数。请用Matlab画出其增益和相位响应，并给出设计的具体步骤。(fuck!!!)

超声图像实时消噪实验程序，还没有完成，或许有很大帮助(Real-time ultrasound image denoising experimental procedure, has not yet been completed, then it might be very helpful)

对特定图像进行颜色和亮度上的处理，并采用局部滤波方法改善全图滤波使得图像分辨率变低的问题，使用非交互式方法，程序可自行完成调整的整个过程。(Specific image processing on the color and brightness, and the use of local filtering method to improve the whole map filter makes the problem of low-resolution images, the use of non-interactive method, the program can complete the whole process of self-adjustment.)

KNN分类器（K-Nearest Neighbor classification）可以简单得将几种类别分开 (KNN classifier)

绘图，其中包含绘图的基本Matlab的源程序，是M文件，还有PPT的相关解释(Drawing, which contains the basic drawing of Matlab source code, is M-file, as well as the relevant explanation PPT)