論文題目: 超寬帶（UWB）無線通信技術(shù)
專 業(yè)：通信工程
學 生：XX 簽名：
指導(dǎo)教師：XXX 簽名：

摘 要
隨著無線通信技術(shù)的高速發(fā)展，人們對無線通信系統(tǒng)的要求日益提高，超寬帶（Ultra-Wideband，UWB）技術(shù)憑借其高速率的數(shù)據(jù)傳輸、極低的功耗以及其精準的定位等性能，逐漸成為無線通信領(lǐng)域研究的一個熱點，受到了廣泛的關(guān)注。
本文首先介紹了超寬帶（UWB）技術(shù)的歷史背景及其定義和特點。其次針對超寬帶（UWB）的原理及其波形進行了研究和探討。然后論述了超寬帶（UWB）的調(diào)制與接收，并主要分析了PPM-TH-UW，PAM-DS-UWB，MB-OFDM-UWB這三種調(diào)制方式。最后本文重點介紹了超寬帶（UWB）的無線定位技術(shù)，首先是對其發(fā)展和定義進行了概述，其次分別介紹了超寬帶無線定位的參數(shù)及其幾何模型，重點對UWB定位中TOA的算法進行了研究，最后通過仿真對定位算法的實現(xiàn)做出了驗證并得到了重要結(jié)論。
關(guān)鍵詞：超寬帶（UWB），無線定位技術(shù)
論文類型：理論研究性

Title：Ultra-wideband(UWB)wireless positioning technology
Major：Communications technology
Name： XXXX Signature:
Supervisor：XXXX Signature:

Abstract
With the rapid development of wireless communication technology, the wireless communication system of the increasing demand, ultra wideband (Ultra-Wideband, UWB) technology by virtue of its high data rate, low power consumption and its precise positioning performance, has become the field of wireless communication research a hot spot, has received the widespread attention.
This thesis first introduces the ultra wideband (UWB) technology to the historical background and the definition and characteristics of. Secondly, ultra wideband (UWB) principle and waveform are studied and discussed. And then discusses the ultra wideband (UWB) modulation and receiving, and primary analysis of PPM-TH-UW, PAM-DS-UWB, MB-OFDM-UWB the three modulation methods. Finally, this thesis introduces the ultra wideband (UWB) wireless positioning technology, first of its development and definition are outlined, followed by introduces UWB wireless positioning parameters and geometry model, focus on the localization of UWB TOA algorithm is studied, finally through the simulation of positioning algorithm to verify and obtained important conclusion.
Key words: ultra wideband (UWB), wireless positioning technology.
Type of thesis: theoretical research

目 錄
第一章 超寬帶（UWB） 4
1.1 UWB技術(shù)的發(fā)展 4
1.2 UWB的定義 4
1.3 UWB的技術(shù)特點 6
第二章 UWB的原理及其波形 7
2.1 UWB的原理 7
2.2 UWB信號的產(chǎn)生 7
2.3 UWB信號的波形 7
2.1.1 UWB信道模型 7
2.1.2高斯脈沖信號 8
第三章 UWB的調(diào)制和接收 10
3.1 UWB典型調(diào)制方式 10
3.1.1 PPM-TH-UWB 10
3.1.2 PAM-DS-UWB 11
3.3.3 MB-OFDM-UWB 12
3.2 UWB信號的接收 13
3.2.1無多徑時AWGN信道的最佳接收機 14
3.2.2多徑信道的Rake接收機 15
第四章UWB無線定位系統(tǒng) 18
4.1引言 18
4.2無線定位技術(shù) 18
4.2.1無線定位的概述 18
4.2.2 UWB無線定位的參數(shù) 20
4.2.3 UWB無線定位的幾何模型 25
4.3 UWB定位中TOA估計算法 29
4.3.1 TOA估計的信號模型 30
4.3.2 基于TOA位置估計算法 32
4.4 LSE仿真實驗及其結(jié)果分析 34
4.5 本章小結(jié) 34
總 結(jié) 35
致 謝 36
參考文獻 37