超宽带无线电系统发射信号能量的优化  

The Optimization of the Transmitted Signal Energy in WB Radio Communi cations

作　　者：贾琳[1] 张中兆[1] 

机构地区：[1]哈尔滨工业大学通信技术研究所,哈尔滨150001

出　　处：《通信技术》2003年第11期45-48,共4页Communications Technology

基　　金："十五"国防预研项目基金资助课题

摘　　要：首次研究白高斯噪声(AWGN)信道下超宽带无线电通信系统中单个数据包单元发射信号能量的优化。对每个符号包含的脉冲数、基本脉冲波形、有效用户数量和帧持续对单个数据包单元发射信号能量的影响进行分析和评估。结果被阐述并且显示,在白高斯噪声信道下,这些参数对发射信号能量有相当的影响,而且,在固定虚假消息概率门限值的条件下,通过合理选取它们能够很好地实现单个数据包单元发射信号能量的优化。In this paper, the optimization of the transmitted signal energy f or a data packet unit in UWB radio communications in additive white Gaussian noi se(AWGN) channel is firstly investigated. The influences of the number of pulse per symbol, basic pulse waveform, the number of active user, and the frame durat ion on the transmitted signal energy for a data packet unit are analyzed and est imated. The numerical results are presented and show that in AWGN channel, these parameters have much effect on this transmitted signal energy and that this opt imization of the transmitted signal energy for a data packet unit can be realize d well by reasonably choosing them under a fixed threshold value of false messag e probability.

关 键 词：超宽带无线电 跳时扩频 脉位调制 冲激无线电 虚假消息概率 

分 类 号：TN91[电子电信—通信与信息系统]