CAPS中APSTAR-1号卫星极化匹配的仿真分析  

Simulation Analysis of Polarization Matching for APSTAR-1 Satellite in CAPS

作　　者：马利华[1] 胡超[1] 韩延本[1] 乔琪源[1] 裴军[1] 

机构地区：[1]中国科学院国家天文台,北京100012

出　　处：《系统仿真学报》2010年第10期2446-2449,共4页Journal of System Simulation

基　　金：国家重点基础研究发展计划"973"项目(2007CB815500)

摘　　要：推导了地面接收终端接收小倾角的倾斜同步轨道通信卫星的电磁波信号的极化角公式,并结合转发式中国区域定位系统(CAPS)中处于寿命末期的APSTAR-1号卫星,讨论了将该卫星用于通信时终端接收天线的极化匹配问题,同时,仿真分析了该卫星的轨道倾角变为5°时在我国各地的极化角调整要求。结果表明,应用小倾角的同步通信卫星开展通信时,极化损耗不可忽视。同时,极化损耗的区域分布非常明显,区域内极化角的调整应当考虑当地的地理位置和工程需要来开展。The formula of polarization angle was deduced for ground receiver terminal to receive electromagnetic wave from slightly inclined geosynchronous orbit （SIGSO） satellites.The polarization matching of antenna receiving signals from the SIGSO satellite such as the APSTAR-1 satellite at end of life in the transmitting Chinese Area Positioning System （CAPS） was discussed.Meanwhile,the necessary polarization adjustment in all China area was simulated when this satellite inclined to 5°.The results show that polarization loss is not negligible and is obvious in some region when the SIGSO satellites are used to communication.When developing communication application with the SIGSO satellites in some region,polarization angle should be adjusted according to local geographical condition and work need.

关 键 词：极化角 极化损耗 CAPS SIGSO 

分 类 号：TN927[电子电信—通信与信息系统]