船载测控系统校相方法的研究

Research of the phase calibration methods for shipboard TT&C system

船载测控系统中,因为跟踪精度要求,常用的跟踪体制为比幅单脉冲双通道跟踪体制。由于船载系统的特殊性,当测控船出海后,由于没有标校塔且由于船摇的存在,很难找准天线电轴的零点,故船载测控系统的校相方法不同于陆地站校相。该文主要介绍了船载测控系统常用的校相技术,包括偏馈记忆法校相法和跟踪信标球校相法,并分析了利用无人机搭载信标球在海上校相使用的可行性。

In shipboard TT&C system,monopulse single channel and dual⁃channel tracking receiver are often used due to the tracking accuracy.Due to the speciality of shipboard TT&C system,the ship has no calibration tower to be used when in sea,so it’s hard to find the neutual point of the antenna.Several often used methods of shipboard phase calibrations methods are introduced in this paper,including assistanced⁃antenna⁃memory⁃method and rough calibration process and fine calibration process.The feasibility of UAV phase calibration to be used in shipborad TT&C system is also analysed in this paper.