极化特性在卫星通信系统中的应用研究

Study of Polarization Feature in Satellite Communication

对信号极化特性的深入研究,可为未来卫星通信系统容量提升、能耗降低、干扰消除等热点问题开辟新的途径。分析了信号极化特性在卫星通信传输中的应用现状,结合当前极化信息理论和最新研究成果,从电磁波基本场的概念出发引出极化表征的方法并阐述了极化与天线之间的关系。在此基础上,分析了任意极化状态的产生以及接收方法。进而,阐述了卫星通信双极化信道模型以及去极化效应对信号产生的影响。最后,分析了极化特性在卫星通信中的发展趋势。

In this paper,we analyze the up-to-date polarization application in satellite communication,and then combine the polarization information theory with the latest research results,and introduce the concept of polarization characterization of electromagnetic wave,and elaborate the polarization and antenna.After that,we analyze the generation of arbitrary polarization state and the receiving method.Furthermore,the influence of satellite communication dual polarization channel model and signal depolarization effect on signal generation is illustrated.Finally,the trend of polarization in satellite communication is analyzed.