GPS静态高程测量代替四等水准测量的探索

摘要

This paper discussed mainly the method of measuring elevation based on GPS platform.GPS static elevation measurement is a new method with the advantages of saving money, fast implementation and easy operation.The paper analyzed in detailed GPS static elevation measurement method and its influencing factors, showing that the effect of the datum plane on the elevation anomaly is obvious during the period of GPS static elevation survey, including two respects of the geoid model and elevation datum.Finally, an example was given to illustrate the feasibility of using GPS static elevation instead of four leveling method.%文章主要介绍了基于GPS平台测量高程方法的讨论,GPS静态高程测量是一种新型的应用,具有节约资金、实施快速、操作简便的优点.对GPS静态高程测量方法以及影响其测量结果的各个因素进行详细分析,在GPS静态高程测量中,基准面对高程异常差的影响较为显著,包括大地水准面模型和高程基准面两个方面,同时总结了目前几种高程差异常拟合模型,最后通过举例阐述了GPS静态高程代替四等水准测量法的可行性.