摘要
GPS观测成果为WGS-84坐标,而我国测绘工作常采用国家坐标或地方独立坐标,为实现GPS坐标向国家(或地方)坐标的转换,并保证转换成果的精度,应合理选择坐标转换模型。本文给出了两种坐标转换模型,即平面转换模型和空间转换模型。通过实例,比较了它们的转换精度,并得出了一些有益的结论。
Result of GPS observation is WGS-84 coordinates, but survey work in our country adopts generally national coordinates or local coordinates, in order to carry out GPS-coordinates transformation accuratly to local coordinates, we must choose model of transformation coordinates in reason, this paper brings forward two model of transformation coordinates Which are plane and spatial modals, some beneficial conclusions are sum up by example.
出处
《城市勘测》
2009年第2期90-92,共3页
Urban Geotechnical Investigation & Surveying
关键词
GPS坐标
地方坐标
坐标转换
成果精度
GPS-coordinates
local coordinates
coordinates transformation
precision of result
