摘要
针对深空探测中的多普勒观测资料的单程和三程模式,分别给出了瞬时和积分的观测模型,双程多普勒观测模型是三程模式的一个特殊情况。通过比较瞬时和积分多普勒的差异,推断在积分周期取得足够小时,瞬时观测模型与积分模型是一致的。利用2009年8月份对火星探测器MEX的三程多普勒测轨资料的处理,检验了三程多普勒资料观测模型的正确性,利用约一个圈次8小时三程多普勒数据进行轨道计算,定轨结果与欧空局重建轨道位置差约几百米。
In this article,the models of instantaneous and integral Doppler for one-way and three-way modes are discussed respectively.The two-way Doppler is a special case for the three-way mode.Comparing the differences between the instantaneous and integral Dopplers,the inferred models of integral and instantaneous Doppler,is consentaneous,when the integral period is small enough.The three-way observation model is checked by analyzing the three-way Doppler tracking data of MEX in the period of August,2009.The location differences are about several hundred meters between the Doppler-based orbit solution of 8 hours arc length（about 1 cycle） and ESA＇s reconstructed orbit.
出处
《宇航学报》
EI
CAS
CSCD
北大核心
2011年第7期1583-1589,共7页
Journal of Astronautics
基金
国家自然科学基金(10703011)
国家高技术研究发展专项(2008AA12A209)
上海市科学技术委员会(06DZ22101)
关键词
深空探测
多普勒
观测模型
轨道计算
Deep-space exploration
Doppler
Observation model
Orbit determination
