Polynomial_Pre_with_Saleh

The future satellite communication systems are re- quired to support the higher transmission data rate for providing the multimedia services by employing the e铿僣ient modulation method such as multi-level QAM.

xws-security-3.0 ws安全包3.0版本(xws security 3.0 for development)

说明：  ：载波频率偏移是OFDM系统实现的关键问题之一。分析了OFDM 系统载频偏移估计的2 种算法，即利用循环前缀和训练序列方法。它们均为最大似然估计方法。分别讨论了它们的基本 思想、实现方法和仿真结果。可以看出基于循环前缀算法复杂度较小，精度不高，而基于训练序列 的算法有较高的估计精度，但降纸了系统传输效率。(Abstract：Carrier frequency ofset is one of the key problems in OFDM system．Two foundational methods 。cycling prefix—based and training sequence—based algorithms。to estimate OFDM carriers~equency ofset are analyzed．Then it discusses their basic thoughts。implementing methods and simulation resuits． Finally。merits and demerits of every algorithm are supposed．It concludes that the cycling prefix— based algorithm has less complexity and less precision。and that the training sequence—based algorithm has better estimation performance at the cost of transmission efficiency．)

本章介绍了用于WAN(广域网)环境的各种协议和技术。在这里概述的题目包括点对点链路，电路交换，分组包交换，虚电路，拨号服务，和WAN设备。在手册第3部分,‘WAN协议’,的各章里将更详细地讲述专门技术。 ( This article introduces the various protocols and technologies used in wide-area network (WAN) environments. Topics summarized here include point-to-point links, circuit switching, packet switching, virtual circuits, dialup services, and WAN devices. Chapters in Part 3, “WAN Protocols,” address specific technologies in more detail. )

是c语言的编程指导手册，分为基础篇和函数篇，使编程人员能快速查找函数等的使用方法。(This is the C language programming guide, divided into basic function and using method, so programmers can quickly find the function. The C language is a programming guide, divided into basic function and using method, so programmers can quickly find the function and so on. )

EMW模块说明书 wifi模块 说得很详细(EMW module manual the EMW module manual EMW module manual EMW module manual)

HYBRID VIDEO CODING MODEL OF FINITE RIDGELET TRANSFORM AND H.264/AVC Tomokazu Murakami and Masashi Takahashi Embedded System Platform Research Laboratory, Hitachi, Ltd. 292, Yoshida-cho, Totsuka-ku, Yokohama, 244-0817, Japan

详细介绍了西门子PLC的间接寻址方法，对于应用西门子PLC很有用处。(Detailed the the Siemens PLC indirect addressing method is useful for the application of the Siemens PLC.)

FLL、PLL、DLL的设计与比较,在扩频通信系统中这三种环路就是关键。(FLL, PLL, DLL design and comparison, in the spread spectrum communication system in these three loops is the key.)

it is a discription of starbucks supplychain managment system