LLREXM

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：  本文件夹包含的是针对电话交换系统的C51程序源代码，包含了电话串口之间的通信功能，以及控制回铃音的程序源代码(This folder contains the telephone exchange system for the C51 source code, including a telephone communication between the serial port, and control ring back tone of the program source code)

对二维图像进行消噪、融合、分割，对对比度，亮度等进行变换的编码源码(Two-dimensional image denoising, integration, segmentation, on the contrast, brightness, etc. Transform source code)

传统PID的整定方法Z-N法，有助于大家快速整定参数，一起讨论哦(The traditional PID tuning method ZN method to help you quickly tuning parameters, and discuss Oh)

CRC 校验的基本思想是利用线性编码理论，在发送端根据要传送的k 位二进制码序(crc)

说明：  matlab环境下格雷码的编码，二进制译成格雷码，反之！！( gray coding in Matlab environment，Binary translated into gray yards)

Abstract—This paper describes a new approach for a course and laboratory designed to allow students to develop low-cost prototypes of robotic and other embedded devices that feature Internet connectivity, I/O, networking, a real-time operating system (RTOS), and object-oriented C/C++.

matlab使用文本文件进行数据存取详细过程说明(matlab using a text file for data access detailed process description)

3D Array Factor of a 4x4 planar array antenna

循环迭代次数对 Turbo 码性能的影响(The impact of loop iterations of Turbo code performance)