应用于卫星导航与对抗的穹形满天星暗室的仿真设计

Simulation Design of Spherical Starry Anechoic Chamber for Satellite Navigation and Countermeasure

针对当前信息化战争背景下卫星导航装备对无线测试环境的应用需求,结合现阶段国内外暗室发展现状,对矩形、穹形两种暗室进行选型分析,从静区特性、应用性能等方面进行系统仿真分析,最终采用穹形暗室作为暗室选型方案。通过满天星天线布局,模拟真实环境中的卫星轨迹和信号,构建与真实环境高度逼真的无线测试环境,能够有效支撑卫星导航装备尤其是波束成形抗干扰终端的测试,填补了国内在穹形满天星暗室方面的设计空白,可指导工程实践应用。

According to the application requirements of satellite navigation equipment for wireless test environment under the background of information-based war, combined with the development of spherical anechoic chamber at home and abroad, the paper makes a selection analysis of the rectangular and spherical anechoic chambers, and the system simulation analysis is carried out from the aspects of quiet zone characteristics and application performance. Eventually the spherical anechoic chambers is used as the selection scheme. Through the starry antenna layout, simulating the satellite trajectory and signal in the real environment, it can effectively support the testing of satellite navigation equipment, especially the test of beam forming anti-jamming terminal. It also fills the design gap in the spherical starry anechoic chamber, and guides the application of engineering practice.