CAJ | 학술논문

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。笔者在介绍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。
국제지구삼고광가(ITRF)시목전이론배경최완선、구건방법최전면、실현정도최고적전구삼고광가，병위기타전구화구역삼고광가제공기준。필자재개소ITRF역사연혁적기출상，착중종ITRF적다기술조합모형、광가기준적정의여학정방법，이급공간대지측량기술참좌표시간서렬적질량삼개방면회고료ITRF적연구현상화존재적문제，병대호미급지구삼고광가적건립진행료전망。
The International Terrestrial Reference Frame (ITRF) was 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 millimeter level in the near future.