基于卫星观测数据的地球重力场探测技术发展趋势分析

Analysis of Earth Gravity Field Detection Based on Satellite Data

分析研究了公开发布的全球重力场模型,根据已有真实卫星数据的重力场反演结果,依次分析了激光地球动力学卫星、重力卫星和测高卫星用于地球重力场探测的特点和局限性,并针对上述缺点和局限性,进一步介绍和分析了当前出现的可用于地球重力探测的新型载荷,如激光测距仪、原子干涉绝对重力梯度仪、干涉SAR高度计等,以及新载荷可能产生的探测效益。以上研究可为地球重力场探测技术未来的发展提供参考。

Based on the statistical analysis of the published global gravity field models, the devel- opment trend of gravity field models is summarized. In order to study the future development of the gravity field detection technology, the characteristics and limitations of Lageos, gravity satel- lites and altimeter satellites for earth gravity field detection are analyzed according to the inver- sion results of the gravity field models derived from real satellite observation data. Finally, some new payloads for the earth＇s gravity field detection, such as laser rangefinder, atom interferome- ter gravimeter, interferornetric SAR altimeter, are introduced and their possible application effect are discussed. The research above can provide a reference for the future development of earth gravity detection technology.