TH-BPM超宽带通信系统抗脉冲干扰研究  

Research on Pulse Jamming Resistance Performance of TH-BPM UWB System

作　　者：黄志清[1,2] 王卫东[1] 

机构地区：[1]镇江船艇学院指挥系,江苏镇江212003 [2]中国科技大学电子工程与信息科学系,安徽合肥230027

出　　处：《计算机仿真》2010年第4期117-119,124,共4页Computer Simulation

摘　　要：由于超宽带信号的宽带效应,其抗干扰能力是必须要研究的关键问题之一。建立了脉冲干扰模型和超宽带通信系统模型,并忽略背景热噪声的影响。通过理论分析和实验仿真,研究了脉冲参数和跳时码参数与超宽带通信系统抗干扰性能之间的关系。通过分析比较发现无跳时码时软判决的性能优于硬判决,且存在最优的干扰因子;当采用软判决时,跳时码调制使系统性能有了显著改善,但码元的取值范围对系统性能没有影响。这些有益的结论为脉冲无线电技术在未来的应用提供了重要参考。Because the frequency spectrum of UWB signal is very wide,its anti - jamming performance is very im- portant. Models of random pulse jamming and UWB communication system are set up and background noise is neg- lected. The relation between anti - jamming performance and parameters of pulse and time - hopping code is analyzed by theoretical analyzing and MatLab simulations. It can be concluded that soft decision is better than hard decision, and there is an optimum jamming factor without TH code. TH code makes a notable impact on system performance, but the range of TH code has no effect on BER when soft decision is used,which can be provided as a reference to the application of impulse radio in future.

关 键 词：超宽带 脉冲干扰 软判决 硬判决 

分 类 号：TN973.3[电子电信—信号与信息处理]