本文总结了G PS高程转换目前用到的各种方法，主要分析了数值逼近法，在此基础上探讨了几种常用的数值逼近数学模型，还论述了一些与G PS高程转换有关的质量控制问题，从大地高和正常高两个方面分析了引起G PS高程拟合的误差源，并提出应对的措施。%In the paper ,summarize the various methods of GPS height conversion ,and mainly analyze the numerical approximation method ,and then discuss several commonly used mathematical models .Furthermore ,analyze the problem of the quality control related with GPS elevation fitting is elaborated .The error fountainhead of GPS elevation fitting is ana‐lyzed from both geodetic H and normal height ,giving the step that should take .
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