homework

说明：  GMM的优化，用EM算法实现高斯混合模型(GMM optimization algorithm EM)

说明：  基于MPC算法的整车控制器实现，carsim-matlab联合仿真建模。(Vehicle controller based on MPC algorithm, carsim-matlab joint simulation modeling.)

利用帧差法实现视频中的物体检测，只能跑图片，须将视频转(Object detection based on frame difference.)

二维图像的沃尔什-哈达玛变换matlab实现。(Two-dimensional image of the Walsh- Hadamard transform matlab.)

this is four opnet modelling language,

张雪英编著的数字语音处理书中的程序，内容比较全面，程序质量有所保证，对于刚接触语音的新手有所帮助。。。。(ZHANG Xue-ying edited book digital voice processing program. . . For the fourth year voice newbie help. . . .)

dct隐写技术matlab实现资料。算法原理：通过在一个图像块中调整两个DCT系数的相对大小，隐藏秘密信息。 将载体图像分为8×8的块，做二维DCT变换 用来表示选中的两个系数的坐标对于第i bit秘密信息 if（要隐藏信息‘1’） make else make 逆DCT变换，还原图像 (dct steganography matlab implementation information. Algorithm principle: an image block by adjusting the relative size of the two DCT coefficients, hidden secret information. The vector image is divided into 88 blocks, making two-dimensional DCT transform coefficients used to represent the coordinates of the selected two for the first i bit secret information if (to hide information ' 1 ' ) make else make the inverse DCT, restore image)

"1D FDTD solution for open boundary in a unitless domain with a Courant factor > 1 (Unstable solutions leading to blow-up)"

已知圆弧起点与终点（角度表示）、圆心坐标，半径，如何用matlab画圆弧(how to draw circle)

说明：  基于密度的聚类算法 它将簇定义为密度相连的点的最大集合，能够把具有足够高密度的区域划分为簇，并可在噪声的空间数据库中发现任意形状的聚类(Density based clustering algorithm It defines the cluster as the largest set of density connected points, and can divide the region with enough high density into clusters, and can find clusters of arbitrary shape in the spatial database of noise)