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中文摘要：
针对以往和新近高阶月球重力场模型,利用多种方式分析和比较了不同重力场模型的功率谱和自由空气重力异常,仿真计算了不同高度、不同倾角、不同重力场模型对探月卫星轨道演化的影响。所有重力场模型对近极轨卫星轨道的影响相同,均适用于近极轨卫星的精密定轨。CEGM02、SGM100h、SGM150较适用于非极轨绕月卫星的精密定轨。未来探月活动可以考虑发射非极轨卫星,进一步完善月球重力场模型。在月球重力场全球模型的基础上,使用局部球谐函数方法,可以对局部重力场进行补充,以完善全球重力场模型。
英文摘要：
The power spectrum and the free air els CEGM02, SGM100h, SGM150, LP150Q, gravity anomaly of different gravity field mod- GLGM-3, LPE200 were analyzed. The orbits of the lunar exploration spacecrafts with different altitudes and inclinations were simulated for all the gravity fields. Results firstly show that all the models behave the same way for polar orbit satellites, which reveal that all the models can be recommended in precision orbit determination for the polar orbit satellites. But CEGM02, SGM100h and SGM150 contribute more to those non-polar orbit spacecrafts. It is accordingly suggested that those non-polar orbit spacecrafts could be launched for future lunar exploration so as to perfect the lunar gravity field model. Moreover, the lunar gravity field model will be refined by using localized spherical harmonic functions which can efficiently extract local gravity field signals.
同期刊论文项目
同项目期刊论文
Comparison analysis on the 150*150 lunar gravity field models by gravity/topography admittance, corr
Lunar geophysical parameters inversion based on gravity/topography admittance and particle swarm opt
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