CAJ | 학술논문

针对卫星导航系统所使用坐标框架的建设问题，讨论了美国 GPS 和我国 BDS 卫星导航系统所使用的坐标框架建设与更新现状，并对我国 BDS 监测站坐标框架的建设提出了一些建议。首先介绍了 GPS 系统所使用的 WGS84的定义及参考椭球常数的演化，系统讨论了 WGS84坐标框架的5次精化实现，然后分析了我国卫星导航系统采用的坐标系统现状：试验系统使用参心坐标系统———54坐标系统、区域系统规定使用 CGCS2000系统，并对区域系统的监测站坐标的初次实现进行了详细阐述，指出其实现并不严格属于 CGCS2000系统，最后对 BDS 的基准站建设、联测、数据处理等问题探讨，并提出了一些建议。
침대위성도항계통소사용좌표광가적건설문제，토론료미국 GPS 화아국 BDS 위성도항계통소사용적좌표광가건설여경신현상，병대아국 BDS 감측참좌표광가적건설제출료일사건의。수선개소료 GPS 계통소사용적 WGS84적정의급삼고타구상수적연화，계통토론료 WGS84좌표광가적5차정화실현，연후분석료아국위성도항계통채용적좌표계통현상：시험계통사용삼심좌표계통———54좌표계통、구역계통규정사용 CGCS2000계통，병대구역계통적감측참좌표적초차실현진행료상세천술，지출기실현병불엄격속우 CGCS2000계통，최후대 BDS 적기준참건설、련측、수거처리등문제탐토，병제출료일사건의。
The terrestrial reference system and its realization play a key role for navigation satellite system.World Geodetic System 1984 (WGS84)and China Geodetic coordinate system 2000 (CGCS2000)are used as the terrestrial reference system for GPS and BDS,respectively.In this paper,the evolution of the definition and corresponding reference ellipsoid of WGS84 is in-troduced,and the 5-times refinement realizations of WGS84 frame are discussed,too.Then,the situation of coordinate sys-tem used by BDS in different period are analyzed,namely 1954 coordinate system used by experimental system,CGCS2000 system by regional system.The initial implementation for the monitoring stations of the regional system is described in detail, and points out that this implementation is not strictly belong to CGCS2000 system.Finally,some suggestions are put forward for the monitoring station construction,joint measurement,and data processing,and so on.