my_code

说明：  （1）应用9×9的窗口对上述图象进行随机抽样，共抽样200块子图象； （2）将所有子图象按列相接变成一个81维的行向量； （3）对所有200个行向量进行KL变换，求出其对应的协方差矩阵的特征向量和特征值，按降序排列特征值以及所对应的特征向量； （4）选择前40个最大特征值所对应的特征向量作为主元，将原图象块向这40个特征向量上投影，所获得的投影系数就是这个子块的特征向量。 （5）求出所有子块的特征向量。 ((1) the application of 9 × 9 window of these images at random, a total sample of 200 sub-image (2) all sub-images according to out-phase into a 81-dimensional row vector (3) all 200 lines for KL transform vector, derived its corresponding covariance matrix of eigenvectors and eigenvalues, in descending order by eigenvalue and the corresponding eigenvector (4) a choice to 40 corresponding to the largest eigenvalue eigenvector as the PCA, the original image block to the 40 feature vectors on the projection, the projection coefficients obtained by this sub-block eigenvector. (5) calculated for all sub-block eigenvector.)

说明：  传热学——热传导 一维非稳态导热微分方程画图(HEAT TRANSFER-HEAT CONDUCTION Drawing of one-dimensional unsteady heat conduction differential equation)

matlab系统仿真的说明，例子多样清楚，简单易懂(system simulation matlab note, for example, clearly diverse, easy-to-read)

How to build affective mathematical models to understand the behaviors of serial crimes is an interesting research field in public security.

统计瑞利衰落特性,得到其幅度密度函数图。更进一步了解瑞利衰落特性。(Analyse the character of rayli fading,getting the CDF of teh rayli fadign.)

AN IMPORTANT class of theoretical and practical problems in communication and control is of a statistical nature.

国外经典教材 GPS Global Positioning Systems - Inertial Navigation and Integration (Wiley 2001)(Classic Textbook on GPS Global Positioning Systems- Inertial Navigation and Integration (Wiley 2001))

Matlab作一维、二维和三维箭头的源代码。(Matlab for the one-dimensional, two-dimensional and three-dimensional arrow s source code.)

说明：  阐述了WLAN技术的发展现状，并详述IEEE802.11ac／ad标准中新增关键技术。MU-MIMO及MAC层增强技术是IEEE802.11ac标准中的两大新增技术，而多频段互操作快速会话迁移（FST）技术以及自适应波 束赋形技术是IEEE802.11ad标准中的关键技术改进，同时进一步阐述了802.11ad标准中支持的不同物理层类型及其应用场景。 (The development of WLAN technology, and describes the new key technology in IEEE802.11ac/ad standard)

逻辑双闭环控制仿真电路，可以帮助分析直流电机拖动系统控制设计。(failed to translate)