GreyRelationDegree

本书从电子技术和通信系统的角度讲解gps接收机的设计开发原理，其内容集中在用户终端，即接收机的设计原理和软件实现上。全书分为两大部分，第一部分为理论篇，第二部分为实现篇。理论篇首先对导航的基本目的进行了阐述，并由一个浅显的二维导航系统对导航信号的特点进行了推导，随后阐述了gps信号格式，同时对于直接影响接收机性能的射频前端部分做了理论分析；实现篇主要对本书实现的软件gps接收机的系统实现和源代码进行了讲解，同时作为总结，将信号处理的结果和有意义的中间变量以图示的方式给出，可以使读者有一个感性的认识，同时提升学习兴趣。. 本书适合从事卫星导航接收机研发的技术人员和卫星通信接收机研究的研究人员，尤其是从事北斗系统研发的专业人员、cdma通信系统研发人员，以及通信电子类专业的高年级本科生和研究生阅读，既可作为教学培训的教材，也可作为相关专业工程技术人员的参考资料。(This book explains the design and development principle of the GPS receiver from the perspective of electronic technology and communication system. Its content focuses on the design principle and software implementation of the user terminal, that is, the receiver. The whole book is divided into two parts. The first part is the theoretical part and the second part is the realization part. Firstly, the basic purpose of navigation is expounded, and the characteristics of navigation signal are deduced by a simple two-dimensional navigation system. Then, the format of GPS signal is expounded. At the same time, the front-end part of radio frequency which directly affects the performance of the receiver is theoretically analyzed.)

Solution SILBERSCHATZ

说明：  hslogic算法仿真，通过simulink建立一个简单的QPSK仿真模型。(Hslogic algorithm simulation, through Simulink to establish a simple QPSK simulation model.)

大致思路说说，就是在外部SRAM里面做了一个大数组[320][240]做了一帧缓冲，所有屏幕相关操作都是在这一帧上面实现的，使用DMA直接丢数据到FSMC接口上，比I/O快多了，然后就是资源的去背问题，所有的图片都是我从手机版上面截图下来的，然后背景色都是0X4DF9，然后因为jpg转换软件的关系，蓝色的背景色会有偏差所以直接判断把0x4df9不显示不可行，后来想到可以用RGB颜色来入手，虽然不是0x4df9但是还是蓝色，所以蓝色分量肯定比红色多，所以做了一个阈值判断(Roughly speaking, a large array [320] [240] is made in the external SRAM to do a frame buffer. All screen-related operations are implemented on this frame. Using DMA to drop data directly to the FSMC interface is much faster than I/O. Then it is the problem of resource backtracking. All the pictures are taken from the top of the mobile version, and then the background color is 0X4DF9. Later, because of the relationship between JPG conversion software, the blue background color will be biased, so it is not feasible to directly judge that 0x4df9 is not displayed. Later, I thought that RGB color can be used to start with. Although it is not 0x4df9, it is still blue, so the blue component must be more than red, so I made a threshold judgment, and then it is the transition between scene and scene.)

这是数据库的教程,是某重点大学的非常专业的讲稿,-This is the Directory database is a key university in a very professional script,

说明：  千年服务端TGS所有代码字段详解。包含CreateGate.sdb文件各字段含义详解。Iitem.sdb文件各字段含义详解。ItemDrug.sdb文件各字段含义详解 等全部解释。(Millennium server TGS all code field details.)

这个程序有Alpha的代码,不过太慢了,我一直无法使他支持MMX,唉!我的p54c(你不知道p54c p55c的区别?)...如果您改进了他或完善了,请给我一份好吗?让我们共同进步!-Alpha code, but too slowly, I have been unable to keep him support MMX, huh! I p54c (you do not know the difference between p54c p55c) ... If you improve his or refined, please give me a copy please let us make progress together!

已知一个学生的成绩数组，在这个数组中找出其中有不及格课程的学生及其学生号-A student s accomplishments are known to the array in this array failed to identify which students and their student number

说明：  计算gammafunction通过Lanczos approximation(calculate gamma function through Lanczos approximation)

说明：  PV BASED WATER PUMPING SYSTEM USING P AND O MPPT