摘要
Ku频段同步轨道卫星是卫星电视广播和卫星通信系统的重要组成部分,占用同步轨道资源多,分布密度大,极易受到其它卫星地面站旁瓣信号的干扰。传统防干扰措施主要通过约束卫星地面站天线旁瓣抑制,控制旁瓣功率实现,但受到天线技术体制限值,天线旁瓣抑制能力有限。对Ku频段卫星的轨道分布和影响因素进行分析,提出一种利用有源相控阵天线零陷技术降低高功率卫星地面站对邻星干扰的方法,为卫星地面站设计和建设提供参考。
The Ku band synchronous orbit satellite plays a key role in satellite television broadcasting and satellite communication system.It occupies more synchronous orbital resources,has a large distribution density,and is highly susceptible to interference from sidelobe signals of other satellite ground stations.The traditional anti-interference measures are mainly achieved by restraining the satellite side station antenna sidelobe suppression and controlling the sidelobe power.However,due to the limits of the antenna technology system,the antenna sidelobe suppression capability is limited.The orbital distribution and influencing factors of Ku-band satellites are analyzed.A method of reducing the interference of high-power satellite ground stations to adjacent satellites by using active phased array antenna zero-sink technology is proposed,which provides reference for the design and construction of satellite ground stations.
作者
周涛
ZHOU Tao(No.54 Institute of CETC,Shijiazhuang Hebei 050081,China)
出处
《通信技术》
2019年第6期1332-1336,共5页
Communications Technology
关键词
同步轨道卫星
邻星干扰
有源相控阵
零陷
geostationary orbit satellite
adjacent satellite interference
active array
zero trap
