new_fenshujie

kalman filter code by Wilson Lau

提出了一种求解电磁场有限元 边界元混合法所生成的线性方程组的有效方法 ———内观 法结合多波前法.由于该线性方程组的系数是一个部分稀疏部分满填充的矩阵,为了加速求解,应用内观法将系数矩阵分为 2块,一块是有限元法形成的稀疏矩阵,另一块是边界元法生成的满阵,然后用多波前法求解稀疏矩阵方程,用高斯 约当消去法解满阵方程. 采用该方法,计算了二维多层介质柱体的雷达散射截面.计算结果表明,该方法的计算效率远远高于传统的高斯法.(Proposed for solving mixed finite element boundary element linear equations generated by an effective method of Vipassana--- a combination of multi wave front method. Since the coefficients of linear equations is a part of the sparsely populated part of the full matrix, in order to speed up the solution, application of Vipassana coefficient matrix is ​ ​ divided into two, one is the finite element method for the formation of the sparse matrix, the other is the boundary element method generates the full array, and then use the multifrontal method for solving sparse matrix equation Gauss Jordan elimination method with full matrix equation solution. use this method to calculate the two-dimensional multi-layer dielectric cylinder of the radar cross section. The results show the computational efficiency of this method is much higher than the traditional Gaussian law.)

gui code of signature detection from scanned document.

说明：  Matlab2014a最新教程及中英文转换说明，详细讲述了2014a的最新功能。(Matlab2014a latest tutorials and instructions in English and converted, a detailed account of the latest features 2014a.)

双基地MIMO雷达利用MUSIC算法实现目标二维方位角联合估计(Bistatic MIMO radar MUSIC algorithm to achieve the goal of a two-dimensional azimuth joint estimation)

Brief Training Document of Matlab

人脸识别源代码，matlab版，研究时间挺长，不过好像有点问题(face recognition source code, Matlab version, research quite a long time, but seem to have some problems)

本人自编的一个快速作图，功能强大的matlab GUI 界面程序。其主要功能如下： 1.导入工作空间变量(X,Y)：导入工作空间变量，并提取类型为数组的变量。 2.绘图(plot)：多种模式，包括1对1，1对多，多对多。如x1—y1 x1—y1,y2；x1,x2—y1,y2。 3.快速标准化图形(NormalFig)：快速设置图形格式，以达到论文图片要求。字体大小，线型粗细等 4.可以手动设置格式 5.可以设置为笛卡尔坐标，也可以设置为对数坐标 6.右键执行命令:“Execute”旁的可编辑框，输入命令，右键执行。右键执行的好处是：可以保存变量到工作空间，实现非连续执行命令。 7.符号函数简易绘图(Ezplot)：快速绘制函数图，并可设置区间，区间设置用“ ”隔开。 8.锁定(lock)：锁定，即图形绘制在GUI坐标轴内；解锁，新建Fig，绘制图形，方便输出 9.保持和编辑(Hold,EditPlot)，编译后exe,亦可对图形进行拾取设置 另还有对变量转置等功能。 整个程序中，如操作失误，每处错误都有提示。 (It is a matlab program,which can help you plot beautiful figures easily,or make you learn some programming skills. In a word,it is a useful program and tool.)

遗传算法，主要用于解决雷达成像中的insar干涉定标时的敏感度问题。(Genetic Algorithm, mainly used to solve the problem of the sensitivity of the radar imaging insar interferometric calibration time.)

图像JPEG系数域，Markov 900维 特征提取，Matlab 下，C语言实现(Image JPEG coefficient domain, Markov 900-dimensional feature extraction, Matlab under, C language)