【摘 要】
：
俄罗斯航天局正在规划和推进新的月球探测计划,包括月球-资源和月球-全球探测任务,它们搭载了3个无线电科学载荷:2个无线电信标机分别安装在2个着陆器上,1个Ka波段接收机安装
【机 构】
：
俄罗斯科学院空间研究所,莫斯科117997
【出 处】
：
2014年俄乌白合作项目研讨会暨嫦娥月球动力学科学讨论会
论文部分内容阅读
俄罗斯航天局正在规划和推进新的月球探测计划,包括月球-资源和月球-全球探测任务,它们搭载了3个无线电科学载荷:2个无线电信标机分别安装在2个着陆器上,1个Ka波段接收机安装在月球-全球轨道器上.信标机发射频率为8.4 GHz和32 GHz.8.4 GHz的微波信号将被发回地球,利用地面VLBI监测网对信号进行测量,其结果可用于精密的天体力学观测及导航,还能用于月球天平动研究;32 GHz信号将用于定轨和月球重力场研究.Ka波段信号天线轴指向着陆区天顶方向,信号由轨道器接收.本文基于对Ka波段信号多普勒频移的精确测量,通过研究着陆区附近重力场的微小变化(约3～5 mGal精度),探讨月球重力场的不均匀性,其测量数据的空间分辨率约为20 km.
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