摘要
针对"动中通"的波束稳定问题,从原理上说明了两轴稳定不能实现卫星通信要求,其不足是天线波束在视线稳定的同时存在波束的滚动,必须增加极化轴稳定。对于低轮廓动中通平板天线,不能使用传统的旋转馈源变极化方法,为此提出了建立虚拟极化轴作为第三轴的概念,并利用电子变极化网络实现相位加权设计了虚拟极化轴,满足了低轮廓动中通的要求。
Considering the beam stabilization problem of Sat-com on the move,that two-axis stabilization system cannot satisfy the requirement of Sat-com and polarization stabilization is necessary was analyzed in principle,for it can only stabilize the LOS of the beam but cannot eliminate the beam＇s roll along its axis.As to the low-profile Sat-com on the move with flat antenna,the traditional method to rotate the feed horn cannot work,so to establish a virtual polarization axis as the third axis was put forward.The virtual polarization axis was implemented by an electronic polarization varying network using the phase weighing method.The result provides a beneficial guidance for the three-axis stabilization system for low-profile SOTM.
出处
《压电与声光》
CSCD
北大核心
2010年第4期554-557,共4页
Piezoelectrics & Acoustooptics
基金
第二炮兵武器装备预研基金资助项目(203020201)
关键词
卫星通信
动中通
三轴稳定
极化
satellite communication
Sat-com on the move
three-axis stabilization
polarization
作者简介
伍宗伟（1985-）．男，湖北十堰人，硕士生，主要从事惯性稳定跟踪、测控系统设计的研究。
姚敏立（1966-），男，山西运城人，教授，博士生导师，主要研究方向为阵列信号处理、智能天线，宽带卫星通信等。
