ADS40生产中坐标系统转换和大地水准面精化成果应用

ADS40生产中利用大地水准面精化成果时，涉及涉及的3个坐标系。介绍了各个平面坐标系的特点及相互转换的方法，阐述了大地水准面精化成果的应用，对平面坐标系的转换精度做了统计分析，从统计结果可知，利用GPSC级点成果和山西省大地水准面精化成果完成坐标转换可以满足小范围的测绘测区（如4000km^2以内）各种比例尺航测成图的要求及一个常规大小的航摄区域范围1∶10000比例尺地形图成图要求。

The Transformation of the Coordinate System in ADS40 Production and the Application of the Results of Quasi-Geoid Refinement

The application of the results of quasi-geoid refinement in ADS40 production involves three coordinate systems. This paper introduces the characteristics of each coordinate system and the methods for the transformation among the three coordinate systems, expounds the application of the results of quasi-geoid refinement, and makes statistical analysis on transformation accuracy of the plane coordinate systems, from which we know that the coordinate transformation completed through the application of GPS C-point results and Shanxi quasi-geoid refinement results can meet the needs of the air covering in small measure area （for example within 4 000 km^2） with various scales and of the topographic mapping in an aerial surveying area of conventional size with the scale of 1：10000.