摘要
为满足我国探月工程对高精度月球重力场模型需求,介绍了月球重力场模型的研究进展及展望。综述了自人类开始探月以来所有和月球重力相关的探月卫星以及相关的月球重力场反演模型;依据探月跟踪模式将探月历程分为三个阶段,并对每个阶段跟踪模式的工作原理进行详细介绍并以示意图的形式呈现;针对当前比较常用重力场的反演方法进行了相关介绍;对各个探月阶段具有代表性的重力场模型进行介绍,主要包括:8×4重力场模型、Lun60D、LP165P、SGM100i和GL0420,并进行了精度对比,发现最新一代模型精度比之前提高了4个数量级;但是在细节处仍有待进一步优化。介绍了本团队在月球重力探索方向研究进展以及月球重力场模型在探究月球内部构造和卫星定轨方面的应用。结合现代技术以及目前重力场反演的不足,提出将来可以改进的方案:改进反演算法、应用重力梯度仪和获取月球表面真实重力数据。
In order to meet the demand of China’s lunar exploration project for high precision lunar gravity field models,the research progress and prospects of lunar gravity field model are introduced in this paper.Firstly,all the lunar satellites related to lunar gravity and the inversion models of lunar gravity field since the beginning of lunar exploration are summarized.Secondly,the lunar exploration process is divided into three stages according to the lunar exploration tracking mode,and the working principle of each stage tracking mode is introduced in detail and presented in the form of schematic diagram.Thirdly,the commonly used inversion methods of gravity field are introduced.Fourthly,the representative gravity field models in each lunar exploration stage are introduced,mainly including:8×4 gravity field model,Lun60D,LP165P,SGM100i and GL0420.The accuracy is compared,and the results shows that the accuracy of the latest generation model is 4 orders of magnitude higher than before,but the details still need to be further optimized.Fifthly,the research progress of our team in the exploration direction of lunar gravity and the application of lunar gravity field model in the exploration of lunar interior structure and satellite orbit determination are introduced.Sixthly,combing modern technology and the shortcomings of current gravity field inversion,this paper proposes future improvement schemes:improving the inversion algorithm,applying gravity gradiometer and obtaining real gravity data on the lunar surface.
作者
张刚强
郑伟
尹文杰
雷伟伟
吴庭涛
张文松
ZHANG Gang-qiang;ZHENG Wei;YIN Wen-jie;LEI Wei-wei;WU Ting-tao;ZHANG Wen-song(School of Surveying and Landing Information Engineering,Henan Polytechnic University,Jiaozuo 454000,China;Qian Xuesen Laboratory of Space Technology,China Academy of Space Technology,Beijing 100094,China;School of Geomatics,Liaoning Technical University,Fuxin 123000,China;School of Aerospace Science and Technology,Xidian University,Xi’an 710126,China;School of Instrument Science and Engineering,Southeast University,Nanjing 210016,China;Southeast University Institute of Instrument Science and Engineering,Nanjing 210096,China;School of Aeronautics and Astronautics,Electronic Technology University,Chengdu 611731,China)
出处
《科学技术与工程》
北大核心
2020年第24期9683-9695,共13页
Science Technology and Engineering
基金
国家自然科学基金面上项目(41774014,41574014)
国防科技创新特区钱学森空间技术实验室创新工作站项目
中央军委科技委前沿科技创新项目(19-H863-05-ZT-001-017-01,17-H863-05-ZT-001-022-01)
中国空间技术研究院杰出青年人才基金(CAST2017-2018)。
关键词
月球重力场模型
空间跟踪模式
月球重力场反演
月球重力卫星
moon gravity field model
spatial tracking mode
lunar gravity field recovery
lunar gravity satellite
