【摘要】 文章从低低卫 卫跟踪(SST LL)重力测量的基本物理思想出发,导出了SST LL重力测量的物理模型,并由此确定了SST LL重力测量所需要的观测量;从重力测量对低低孪星的编队要求出发,得出了孪星轨道的平均半长轴之差最低控制需求,导出了卫星姿态俯仰角控制与孪星到地心的距离、及与孪星沿迹相对距离的关系,并估算了孪星两次编队保持机动的时间间隔。更多还原

【Abstract】 Based on the essential physical thought,the paper builds up the physical model of gravity measurement by Low-Low Satellite-Satellite Tracing (SST-LL) technology,therefore,confirms the required observations for SST-LL gravity measurement.To meet the low-low twin satellites formation,the paper analyzes the requirement of the difference of the mean semi-major axes and the pitch control of the twin satellites.Finally,the time space between two formation keeping maneuvers is approximately calculated.更多还原