国际地球参考框架(ITRF)的研究现状及展望*

自然杂志 ›› 2013, Vol. 35 ›› Issue (4): 243-250.

国际地球参考框架(ITRF)的研究现状及展望*

刘经南^① 魏娜^② 施闯^③

①中国工程院院士，②博士，③教授，武汉大学卫星导航定位技术研究中心，武汉430079

收稿日期:2013-04-25 修回日期:2013-05-25 出版日期:2013-08-25 发布日期:2013-08-25
基金资助:
*国家自然科学基金项目(41204009)；国家高技术研究发展计划(863计划)项目(2013AA122501)

Status and prospects of the International Terrestrial Reference Frame (ITRF)

LIU Jing-nan^①, WEI Na^②, SHI Chuang^③

①CAE Member, ②Ph. D., ③Professor, GNSS Research Center, Wuhan University, Wuhan 430079, China

Received:2013-04-25 Revised:2013-05-25 Online:2013-08-25 Published:2013-08-25

摘要/Abstract

摘要： 国际地球参考框架(ITRF)是目前理论背景最完善、构建方法最全面、实现精度最高的全球参考框架，并为其
他全球和区域参考框架提供基准。本文在介绍ITRF 历史沿革的基础上，着重从ITRF 的多技术组合模型、框架基准
的定义与确定方法，以及空间大地测量技术站坐标时间序列的质量三个方面回顾了ITRF 的研究现状和存在的问题，
并对毫米级地球参考框架的建立进行了展望。

关键词: 毫米级地球参考框架, 地心运动, 多技术组合, 季节性变化

Abstract: The International Terrestrial Reference Frame (ITRF) has been regarded as the most important global terrestrial
reference frame that has the most rigorous theoretical framework, adopts the most advanced approaches and achieves the highest
accuracy. Other global and regional TRFs usually use ITRF to determine their datum. Based on the history and development of ITRF
introduced in this paper, we overview the status and problems of ITRF from these three aspects: mathematical models of
multi-technique combination, definitions and realizations of TRF datum and space-geodetic time series. As a conclusion, we give
some recommendations to establish TRF at mm-level in the near future.

Key words: terrestrial reference frame at mm-level, geocenter motion, multi-technique combination, seasonal variation

刘经南魏娜施闯. 国际地球参考框架(ITRF)的研究现状及展望*[J]. 自然杂志, 2013, 35(4): 243-250.

LIU Jing-Nan;WEI Na;SHI Chuang. Status and prospects of the International Terrestrial Reference Frame (ITRF)[J]. Chinese Journal of Nature, 2013, 35(4): 243-250.