摘要
由于测量技术的限制以往描述空间点的位置通常用平面坐标和高程坐标来表示,随着空间大地测量技术的不断发展,为了避免二维坐标描述的弊端,实现更科学的描述动态的地球,世界各个国家都在完善各自的大地坐标系和它相应的坐标,我国在2008年7月1日启动了国家2000坐标系。地心坐标系统及其框架正在逐渐取代以往的传统的非地心大地坐标系统及其框架。
Due to the limitations of measurement technology, in the past, the location of spatial point is usually represented by the plane coordinate and elevation coordinate. With the continuous development of space geodetic measurement techniques, in order to avoid the drawbacks of the two-dimensional coordinates and achieve a more scientific description of the dynamic Earth, all the countries are improving their geodetic coordinate system and its corresponding coordinates. In July 1, 2008, China started the 2000 national coordinate system. The conventional non-traditional geocentric geodetic coordinate system and its framework are gradually replaced by the geocentric coordinate system and its framework.
出处
《价值工程》
2014年第26期229-230,共2页
Value Engineering
