中文摘要：

地球参考框架是地理空间数据基础设施的重要组成部分。地球参考框架的不断完善为人类更好地认知地球提供了技术基础。随着空间大地测量等技术的发展以及地球科学及相关学科间的渗透交叉融合,建立顾及基准站非线性变化的毫米级地球参考框架已经成为可能。首先,探讨了毫米级地球参考框架的定义及建立的必要性,阐述了地球参考框架的研究进展;然后,提出了顾及基准站非线性变化的毫米级地球参考框架的构建方法;最后,围绕解决建立毫米级地球参考框架的几个关键问题进行了展望。

英文摘要：

Terrestrial reference frame（TRF）is an important part of geographical spatial infrastructure.Due to its continuous improvement,a better and better view of the earth could be derived.Nowadays,the further development of space geodetic techniques and interdisciplinary integration of different subjects provide a good chance for establishment of an mm-level TRF considering non-linear variations.In this paper,the advances of TRF are firstly discussed and the significance for establishment of mm-level TRF is confirmed.Then,new methods are proposed for constructing mm-level TRF considering non-linear variations.Finally,the prospects of several unresolved key issues in the establishment of mm-level TRF are pointed out and discussed.