摘要
分析了GPS测量中高程系统转换的实质,介绍了四种GPS高程转换方法的基本原理,然后结合实际算例对四种方法拟合的结果进行了精度分析,总结了各种方法的优缺点,得出一些参考性的结论。
The substance of height conversion in GPS survey is analyzed,and the basic principle of four methods of GPS height conversion is described.And then this paper makes an accuracy analysis of four methods combining with a practical example.Some reference conclusions are reached after summarizing the advantages and disadvantages of each method.
出处
《测绘与空间地理信息》
2011年第3期168-170,共3页
Geomatics & Spatial Information Technology
关键词
GPS高程
高程转换
高程异常
精度分析
GPS height
height conversion
height anomaly
accuracy analysis
