一种基于信标的移动卫通相控阵波束跟踪算法  

A Beam Tracking Algorithm Based on Satellite Beacon Signals for Phased Array in Mobile Satellite Communications

作　　者：陈鹏[1] 张慧[1] 

机构地区：[1]东南大学信息科学与工程学院毫米波国家重点实验室,南京210096

出　　处：《微波学报》2012年第6期6-11,共6页Journal of Microwaves

基　　金：国家科技重大专项(2010ZX03007-001-01);教育部博士点基金(新教师类20100092120013)

摘　　要：提出并实现了一种利用卫星信标信号来实施基于相控阵天线的波束跟踪算法。该方法适用于采用相控阵天线技术的各种卫星"动中通"天线,克服了卫星信标信号强度弱,检测困难的弱点,提高了跟踪信噪比,同时采用了软件无线电方式解调可以提供最大的灵活性。跟踪算法的最大优点是没有任何陀螺仪的辅助,极大地提高了天线在各种极端运动环境下的适应能力。算法最终在自行研制的Ku波段相控阵移动卫星天线系统上获得验证。In this paper a beam tracking algorithm based on satellite beacon signals is proposed and realized. The method is suitable for all kinds of phased array type mobile satellite communication antennas. It overcomes the difficulty of detecting the extremely weak satellite beacon signals and then the tracking performance is greatly improved. The highlight of the algorithm is the beam tracking process can be run without the help of gyroscopes and thus improves the survivability in the extreme environments. The algorithm was implemented and verified in a Ku band phased array mobile satellite antenna.

关 键 词：波束跟踪 动中通 卫星信标 相控阵 

分 类 号：TN828.5[电子电信—信息与通信工程]