摘要
由于超宽带通信技术的众多优点,将其应用在无人飞行器编队通信链路上是一个可行的选择。建立了部分频带干扰模型,通过理论分析和计算机仿真,对不同带宽的干扰信号、接收机采用不同的接收检测方式时,跳时-脉位调制超宽带通信系统的抗干扰性能进行了评估。分析比较发现采用软判决接收方式时的抗干扰效果优于硬判决接收方式;在干扰功率相同的情况下,干扰信号带宽越小系统性能越差。这些有益的研究结果为超宽带通信链路的参数选择提供了重要依据。
It is a feasible choice for ultra wide band technology used in communication link of Unmanned Aerial Vehicles because of its merits. Partial band jamming and TH-PPM-UWB system are modeled. Anti-jamming performance of soft decision and hard decision are separately evaluated by theoretical analyses and simulations, when jamming band of PBJ is different. It can be concluded that performance of soft decision is better than hard decision. The worse anti-jamming effect is ,the little jamming band is, when jamming power is identical. The valuable conclusions can be provided as a basis to the parameter selection method of UWB communication link.
出处
《科学技术与工程》
北大核心
2013年第20期5815-5818,共4页
Science Technology and Engineering
关键词
超宽带
MATLAB仿真
部分频带干扰
软判决
硬判决
ultra wide band
MATLAB simulations
partial band jamming
soft decision
hard decision
