论文部分内容阅读
随着空间大地测量精度的提高与需求的发展,地心运动的研究与监测日益重要,它是精确实现地球质心参考框架的关键之一.本文详解了地心运动的原因(地球系统中的质量迁移)及对空间大地测量与地球物理学的影响,总结了常用的四种地心运动监测方法(网移动法,运动学法,动力学法和一阶形变法)及部分成果和应用,讨论了各方法和SLR,DIRIS,GPS和VLBI四种空间大地测量技术在地心运动监测中的特点,并给出了一些削减误差的建议.为满足地球动态环境研究的需要,地心运动监测的精度与可靠性仍需进一步提高,这依赖于观测精度的提高,地球物理模型的完善和数据处理方法的发展.
With the improvement of space geodetic precision and development of demand, the study and monitoring of geocentric motions are increasingly important, and it is one of the keys to accurately realize the geocentric frame of reference.This paper elaborates on the causes of geocentric motions (the quality of the earth system Migration) and the impact of space geodesy and geophysics, summed up the commonly used four kinds of geocentric motion monitoring methods (net move method, kinematic method, dynamic method and first order deformation method) and some results and applications, discuss The methods of geodesy and the methods of SLR, DIRIS, GPS and VLBI in geodetic motion monitoring are given, and some suggestions are put forward to reduce the error.In order to meet the needs of geo-dynamic environment research, geodetic motion monitoring The accuracy and reliability still need to be further improved, which depends on the improvement of observation accuracy, the improvement of geophysical models and the development of data processing methods.