基于FCC辐射遮蔽限制的超宽带脉冲设计算法  

Algorithm for UWB Pulse Based on FCC Emission Mask Constraint

作　　者：陈睿[1] 曾小清[2] 董德存[2] 

机构地区：[1]同济大学信息与通信工程系,上海200092 [2]同济大学交通信息工程系,上海200092

出　　处：《同济大学学报（自然科学版）》2008年第7期972-976,共5页Journal of Tongji University:Natural Science

基　　金：国家自然科学基金资助项目(50678129);国家"八六三"高技术研究发展计划资助项目(2004AA505560)

摘　　要：研究了基于美国联邦通信委员会(FCC)辐射遮蔽限制的超宽带无线通信系统脉冲设计方法.以具有不同脉冲形状因子的Rayleigh脉冲为基函数,提出对Rayleigh脉冲的各阶导数进行加权迭代组合的超宽带(UWB)脉冲设计方法.对采用迭代组合脉冲和传统高斯二阶微分脉冲的2PPM-TH(跳时脉冲位置调制)通信系统在高斯信道下的单链路误比特率(BER)、多址、多径等方面性能进行了仿真比较,验证了所提出的迭代组合脉冲在功率谱密度方面能更好地满足FCC辐射遮蔽的要求,在单链路及多址性能方面优于传统的高斯二阶微分脉冲.Based on the restriction of federal communications commission（FCC）emission mask,an investigation was made of the methods of designing impulse pulse waveforms for ultra wideband（UWB）communicafions. The Rayleigh pulse with the diverse shaping factors acting as basis functions, this paper presents the iterative combination pulse method. The paper presents a comparative analysis of the bit error rate（BER）performance of the pulse position modulation time hopping ultra wideband（PPM TH UWB）impulse radio（IR） communication system employing the iterative combination pulse or the second derivative Gaussian pulse in the additive white Gaussian noise（AWGN ）channel, multiple user interference（MUD and multiple path channel. The simulation results show that the power spectrum density（PSD）of iterative combination pulse meets the FO2 spectral mask better,and the performance of the UWB system with combination pulse is better than that with the second derivative Gaussian pulse.

关 键 词：超宽带脉冲 Rayleigh脉冲 组合脉冲 联邦通信委员会辐射遮蔽 

分 类 号：TN914.4[电子电信—通信与信息系统]