基于PSWF的TH-PPM超宽带系统优化设计与仿真  

Simulation and Optimization of TH-PPM Ultra Wide-Band Systems Based on PSWF

作　　者：侯文君[1,2] 王红星[2] 王瑛 

机构地区：[1]海军装备研究院,北京100036 [2]海军航空工程学院电子信息工程系 [3]烟台市有线广播电视信息网络中心,山东烟台264001

出　　处：《海军航空工程学院学报》2012年第6期618-622,共5页Journal of Naval Aeronautical and Astronautical University

基　　金：山东省"泰山学者"建设工程专项经费资助项目

摘　　要：在分析PSWF脉冲的最佳时域能量聚集性和频谱灵活可控性的基础上,提出了满足FCC(FederalCommunications Commission)频谱掩膜要求的UWB脉冲波形优化设计方法,并将该方法应用于多进制TH-PPM超宽带系统中,理论计算了基于PSWF脉冲的多进制PPM-UWB系统的符号差错率公式。与高斯脉冲进行比较,采用Systemview可视化仿真平台进行了仿真。仿真结果表明,基于PSWF脉冲的UWB系统符号差错率性能要明显优于Gauss脉冲。在给定SER的前提下,使用PSWF脉冲的UWB系统能够容纳更多的用户。In this paper, the high spectrum utilization efficiency and the flexibility of PSWF was analyzed. Based on this, a method meeting the FCC spectral mask was proposed and it was used in a M-ary TH,PPM UWB system. Both the analytic expression of the SER performance for the scheme and the simulation based on Systemview were derived theoretically. Simulation results showed that the proposed system had a better BER performance than the traditional UWB system employing single Gaussian pulses. Being given the premise of the value of SER. the UWB communication systems with PSWF pulse can accommodate more users.

关 键 词：超宽带 多进制脉冲位置调制 多用户 扁长椭球波函数 

分 类 号：TN781[电子电信—电路与系统]