基于正交UWB脉冲的TH-BPSK超宽带系统  

A TH-BPSK Ultra-Wide Bandwidth System Based on Orthogonal UWB Waveforms

作　　者：李耀民[1] 周正[1] 

机构地区：[1]北京邮电大学电信工程学院,北京100876

出　　处：《电讯技术》2004年第4期10-14,共5页Telecommunication Engineering

基　　金：教育部科学技术研究重点项目资助(03035)

摘　　要：超宽带(UWB)系统通常使用一种UWB脉冲发送数据,本文根据正交函数的特性,提出了一种基于正交UWB脉冲的TH-BPSK超宽带系统,它可以在一帧内传送多个UWB脉冲,提高了系统的传输速率。本文详细说明了系统的组成及工作原理,分析了系统性能。计算机仿真和理论计算结果表明:与仅使用一种UWB脉冲的TH-BPSK超宽带系统相比,在相同的用户数、信噪比和跳时序列条件下,本文提出的系统具有更低的误码率(BER)、更高的传输速率。An Ultra-wide Bandwidth(UWB) system usually transmits the same UWB impulse. Based on the property of orthogonal functions, this paper proposes a TH-BPSK UWB system using a set of orthogonal impulses. The transmitter transmits several impulses in one frame and the system data rate is increased. In this paper, the authors describe the system framework and how it works in details, analyze the system performance. Simulation results and theoretical analysis indicate that : compared with the TH-BPSK UWB system using the same UWB impulse, the system proposed by this paper has lower Bit Error Rate(BER) and higher data rate under the condition that the number of users,SNR and time hopping sequence are the same for the two systems.

关 键 词：超宽带系统 正交函数 TH-BPSK 

分 类 号：TN914[电子电信—通信与信息系统]