【摘要】 坐标框架是描述地球形状及变化、表达地球空间信息的基础，也是拓展人类活动、促进社会发展的关键地球空间信息基础设施。随着空间大地测量观测技术的发展，地球科学及相关学科间的交叉渗透融合，利用其建立全球或区域坐标框架成为当前大地测量的主要任务。研究建立1毫米级坐标框架是国际大地测量学界21世纪的学科目标和重要挑战。本文以当前建立理论最完善、应用最广泛、精度最高的国际地球参考框架为例，描述了基于空间大地测量观测技术的坐标框架建立方法，阐述了全球及区域地心坐标框架建设的最新进展及局限性，最后针对建立1毫米级坐标框架的几个关键问题提出了研究思路。更多还原

【Abstract】 Coordinate frame is the basis for describing the Earth ’s shape and its variation, as well as geospatial information. It is also a key geospatial information infrastructure to expand human activities and promote social development. With development of space geodetic observation technologies together with integration of earth science and related disciplines, establishment of global and regional coordinate frame based on space geodetic techniques has become the main task of geodesy field at present, while the goal of building coordinate frame with 1 millimeter(mm) level prove to be both the disciplinary goal and great challenge for international geodesy community of the 21 st century. Taking the most widely used International Terrestrial Reference Frame(ITRF) with perfect theory and the highest accuracy as an example, this paper firstly describes the method of establishing coordinate frame based on space geodetic technologies. Secondly, the latest progress and limitations of recent global/regional coordinate frames are illustrated. Finally, ideas for several key issues aiming at establishing the 1 mm level coordinate frame are proposed.更多还原