ADS40数字航空摄影测量系统本地坐标系的建立

讨论了WGS84坐标到国家坐标系、独立坐标系的转换过程，说明了在ADS40数字航空摄影测量系统中定义坐标系的方法。平面采用WGS84大地坐标（BLH）和我国的大地坐标系（BLH）建立坐标转换关系，高程采用大地水准面精化成果，解决了平面坐标的高精度转换和WGS84坐标与我国国家坐标系、独立坐标系之间高程无法高精度转换的问题。

The Establishment of the Local Coordinate System of ADS40 Digital Aerial Photographic Survey System

This paper discusses the transformation process of WGS84 coordinate into the national coordinate system and independent coordinate system, expounds the method for t defining the coordinate system in ADS40 digital aerial photographic survey system. The transformational relation between WGS84(BLH) and our national coordinate system(BLH) is adopted for the plane, and the geoidal surface refinement results are adopted for the elevation, which solve the problems of the high-accuracy transformation of plane coordinates and the high-accuracy transformation among WGS84 coordinate, Chinese national coordinate system and independent coordinate system.