智能天线在伪卫星增强系统中的抗干扰作用

过去的十年中,卫星导航技术在武器系统的导航和制导领域得到了很好的应用.但是,系统的应用过程中无线电射频干扰对其通信链路的性能会产生极大的影响,智能天线技术是一种比较有效的抗干扰措施.对伪卫星增强系统多种智能天线的自适应算法进行了比较分析.结果表明SMI算法相对其他算法而言在收敛速率和天线方向图的效果上皆有相当的优越性.适合于伪卫星增强系统的干扰抑制应用.

Anti-Jamming of Smart Antenna in Pseudolite Augmentation System

In the past decade,satellite navigation technology has been used in many fields,e.g.navigation and guidance of many weapon system.But,radio-frequency interference will cause severe degradation on satellite communication link performance,so,the application of satellite navigation system is limited badly.In the past several years,along with the development of smart antenna technology,it has been being an effective anti-jamming measure for satellite navigation.In this paper,for the pseudolite-based augmentation system,a comparative analysis of various adaptive algorithms for smart antenna is proposed.The results of analysis and correlative simulations show that SMI algorithm offers the advantages of faster convergence rates and beam pattern performance.So it is proper to be used to cope with undesired inteference signals in the pseudolite augmentation system.