The main contents of this thesis are at a glance : chapter 1 gives a brief survey on principle and development of digital tv system and hdtv system , respectively 主要内容如下：第一章绪论首先概述了数字电视与高清晰度数字电视的发展历史和原理，并简要介绍了dsp的发展历程。
We provide a brief survey of recent results on the electronic transport characteristics of single molecules as well as self - assembled monolayers ( sam ) 摘要介绍了测量单个有机分子导电性质的一些进展，包括分子的尺寸效应、官能团效应、分子与电极的接触效应等，以及分子逻辑器件的初步研究。
In this paper , gave a brief survey of research condition and development trend on realiablity of mechanical system , and theories and methods of realiability distribution are studied especially 论文概述了机械系统可靠性研究的现状和发展趋势，对机械系统可靠性分配理论和方法进行了研究和分析。
In addition to the focus on currency , we include a brief survey of hong kong s monetary and banking systems from the early years to the present , so our readers can understand the current work of the hkma against a historical perspective 除了探讨货币课题之外，我们亦简介本港由早期至现在的货币与银行体系，让读者从历史角度了解金管局目前的工作。
In addition to the focus on currency , we include a brief survey of hong kong s monetary and banking systems from the early years to the present , so our readers can understand the current work of the hkma against a historical perspective 除了探讨货币课题之外，我们亦简介本港由早期至现在的货币与银行体系，让读者从历史角度了解金管局目前的工作。
On the basis of some conceptions relating to network and a brief survey of existing self - healing techniques , a norm named " the distributed character of traffic routes " is presented , which is used to judge that the survivability of a physical topology is good or not 在介绍了相关概念和回顾现有技术的基础上，从实际网络中的业务需求分布的角度，提出了一个可以用来衡量一个网络物理拓扑的生存性性能的指标? ?网络业务路由分布特性。
At first , a brief survey of smart paging information system is presented , and its network structure , key technologies and the integration between the paging system and internet are introduced . the dissertation next describes the design and implementation of the smart paging module , a platform for paging data access 文中首先对无线寻呼系统及关键技术做了阐述，介绍了其网络结构和提供的业务需求，讨论了寻呼技术与internet技术的结合，提出了智能寻呼信息系统的方案并介绍了其特点及应用等。
A brief survey on the state - of - the - art research of determining geographic location of ip addresses is presented . the problem of determining the geographic location of routers in internet service provider topology measurement is discussed when there is inadequate information such as domain names that could be used Ip地址定位技术在internet拓扑测量internet路由性质刻画与地理位置相关的应用服务例如定向广告web个性化搜索以及web地理空间导航geo - spatial navigating等方面具有重要作用。
Chapter 1 gives a brief survey of the development of broadband access networks , after the introduction the main technology of access networks , we give out the new in - home power line networking technology based on orthogonal frequency - division multiplexing ( ofdm ) , and studies the general content of homeplugl . o protocol , focusing on the physical layer and mac layer specifications of the protocol 第一章介绍了宽带接入网络的发展，着重介绍了基于正交频分复用( ofdm )的室内电力线载波通信网络技术，给出homeplug1 . 0协议规范，重点在于物理层和mac层技术规范。
This thesis gives them a brief introduction and comparison first and then presents a solution for data broadcasting technology . lastly , we introduce the implementation of ip - catv and catv - ip gateway , which are key part of data broadcasting system , using the state - of - the - art technology - embedded fpga . the paper is organized as follow : chapter 1 gives a brief survey on broadband access techniques , hfc / catv network , protocols and standards for data transmission technology over hfc network and overview of embedded technologies we used 本文介绍dvb davic数据广播系统的原理，然后给出了一个数据广播系统的解决方案，并介绍了采用sopc技术实现其核心设备ip - catv及catv - ip网关的方案，全文安排如下：第一章介绍了宽带接入技术、 hfc catv网络及其数据传输标准以及嵌入式系统(我们系统方案使用) ，然后引出了本文的主要工作。
