基于随机脉冲干扰的超宽带通信系统性能分析  

Performance analysis of UWB communication system based on random pulse jamming

作　　者：黄志清[1,2] 王卫东[2] 

机构地区：[1]镇江船艇学院指挥系,江苏镇江212003 [2]中国科技大学信息科学技术学院,合肥230027

出　　处：《天津工业大学学报》2013年第1期66-69,共4页Journal of Tiangong University

基　　金：中国科学院知识创新工程重大方向性项目(KGCX2-WY-415-2)

摘　　要：基于忽略背景热噪声影响的前提,建立了随机脉冲干扰模型和调时-二相调制超宽带(TH-BPM-UWB)通信系统模型.对软判决检测方式和硬判决检测方式分别作了研究,确定出脉冲参数、跳时码参数与超宽带通信系统抗干扰性能之间的关系.理论分析和实验仿真表明:软判决的性能并不总是优于硬判决;当多脉冲接收机采用软判决且信干比较小时,其性能反而不如单脉冲接收机;跳时码调制对随机脉冲干扰的影响很小.Random pulse jamming model and TH-BPM （Time Hopping-Binary Phase Data Modulation）UWB communication system model were established with the background noise being neglected. Soft decision detection and hard decision detection were studied respectively, and the relation between anti-jamming performance and two parameters of pulse and TH code was found. Both theoretical analysis and simulation results show that the performance of soft decision is not always better than hard decision, the performance of multi-pulses receiver is actually not as good as mono-pulse receiver when soft decision is applied with low SJR, and TH code has a slight impact on random pulse jamming.

关 键 词：超宽带 随机脉冲干扰 软判决 硬判决 性能仿真 

分 类 号：TN973.3[电子电信—信号与信息处理]