双星串飞编队测高模式下高度计定标方案构想

针对新型双星串飞编队测高模式下高度计定标需求,提出了融合绝对定标与相对定标的综合定标方案构想。梳理了当前国际上主流的绝对定标方法,根据编队模式常规任务阶段的卫星轨道特点,提出了在常规长回归周期轨道之外增加天回归定标轨道的建议,在此前提下,给出了两种轨道阶段的定标方案建议,即:在定标任务阶段,绝对定标以验潮站法为主、GNSS浮标法和锚泊阵列法为辅;在常规任务轨道阶段,使用全球海域测量数据进行相对定标,绝对定标可选择适当海域结合GNSS浮标法和验潮站法实施。

Conceptional Scheme of the Altimeter Calibration Under Dual-satellite Formation Flying Altimetry Mode

Aiming at the demand of altimeter calibration under the novel dual-satellite formation flying altimetry mode,a conceptional scheme merging absolute calibration and relative calibration is proposed.The prevailing absolute calibration methods are clarified,and the suggestion of adding one-day repeat orbit besides the conventional long repeat orbit is presented according to the orbit features of the conventional mission phase of formation flying mode.Under this premise,the calibration scheme containing two orbit phases is proposed.In the calibration orbit phase,absolute calibration is suggested to realize using the tide gauge as essential with GNSS buoy and mooring array as supplement.In the conventional orbit phase,relative calibration can be realized using global oceanic observations and absolute calibration can be implemented by using GNSS buoy and tide gauge in appropriate areas.