月面巡视器定向天线对地指向规划方法研究

摘要

This paper deals with the high-gain antenna direction planning for the lunar rover.The direction vectors of antenna beam center line and of earth receiving station are given by spatial vectors calculating.And the rotation angles of the antenna and the rover attitude are adjusted to make the antenna beam center line direct to the earth receiving station.With the rover attitude as input parameters,the two rotation angles of the antenna,viz.yaw angle and pitch angle,can be adjusted to achieve the goal; also the rover attitude can be adjusted to help the antenna realize the direction.The test result is given to prove the validity of the method.%针对月面巡视器的工作特点,对其定向天线进行对地指向规划.文章给出了天线波束中心方向矢量和地面站方向矢量的计算方法,并通过调整天线机构转角和巡视器姿态角使天线波束中心指向地面站.一种方法是将巡视器的姿态角作为输入参数,仅调整定向天线2个自由度的转角,即偏航角和俯仰角,实现对地指向；同时巡视器的姿态角也可进行调整,即用巡视器的运动适当地代替天线机构的运动,使定向天线实现对地指向.地面试验结果表明本文的规划方法可行、有效.