超宽带无线通信技术及主要应用毕业论文.doc

超宽带无线通信技术及主要应用毕业论文
摘要
UWB(超宽带无线通信技术)的核心是冲击无线电技术,它之所以成为无线通信领域关注的热点,是由用户需求和UWB技术的性能特点共同决定的,其带宽大于目前所有通信技术的带宽,抗干扰性能强、传输速率高,满足 10m之内的无线个人局域网。
本文介绍了UWB的发展背景,并按照传输的数据从脉冲信号波形的产生、经信道传输、最后被接收机接收的路线进行了分析讨论。并对UWB接收机关键技术、UWB多址技术、 UWB的标准化进程等方面进行了论述。
本文仅对UWB技术在无线个人局域网中的应用进行了分析,并提出了UWB技术的不足之处和解决方案,最后对UWB技术的开发和发展前景作了展望。
关键词超宽带无线通信技术,无线个人局域网,多址技术,脉冲调制
ABSTRACT
The core of UWB (ultra-wide band) is shock radio technology, the reason that es the wireless correspondence domain attention the heatpoint, it decided together by the user demand and the UWB technology performance characteristic. Its band width is bigger than munication band width at present, the resistance to interference is more strong, the transmission speed is higher, satisfies in 10 meters of the wireless individual local work.
This article introduced the UWB development background, and according to the transmission the data from the pulse waveform production, course the channel transmission, finally the route which is received by the receiver has carried on the analysis discussion. And to the UWB receiver essential technology, UWB multi- sites technology, UWB standardized advancement and so on which has carried on the elaboration.
This article has only analysis to the UWB technology in the wireless individual local work application, and proposed the UWB technology deficiency and the solution, finally have made the forecast to the UWB technology development and the prospects for development.
KEY WORDS Ultra-wide band munication, wireless individual local work, multi- sites technology, impulse modulation
目录
前言…………………………………………………………………………………1
第1章 UWB技术背景…………………………………………………………………………3
UWB 技术的历史…………………………………………………………………3
什么是 UWB ………………………………………………………………3
UWB 的空间容量…………………………………………………………6
第2章 UWB 波形及调制技术…………………………………………………………7
超宽带波形………………………………………………………………7
脉冲调制方式……………………………………………………………9
多频带脉冲调制…………………………………………………………10
第3章 UWB 接收机关键技术…………………………………………………………11
Rake 接收机……………………