ADS 80数据处理中的测绘基准转换

Coordinate System Transformation of ADS 80 Data Processing

在ADS 80数据处理时,平面涉及到3种坐标系,高程也要把大地高转换为正常高。本文结合辽宁省农村集体土地确权登记发证工作阐述了1980西安坐标系、CGCS 2000国家大地坐标系、WGS-84坐标系之间的转换方法及高程转换问题。

In ADS 80 data processing,there are three coordinate systems involved in plane: Xi’an geodetic coordinate system 1980(Xi’an 80),China Geodetic Coordinate System 2000(CGCS 2000),and World Geodetic System 1984(WGS-84),and the elevation data should be transformed from geodetic height into normal height.Combining with rural collective land rights,registration,and certification work of Liaoning province,this paper elaborates the transformation methods for the three coordinate systems and height transformation issues.