基于NBCORS的似大地水准面精化成果检测与分析

Checking and Analyse of the Ningbo Quasigeoid Based on NBCORS

似大地水准面精化是现代测绘基准体系的重要组成部分,它的推广应用可改变传统高程测量模式。本文通过对宁波市似大地水准面精化成果进行同精度的正确性静态检测,评定其外符合高程异常模型精度;通过进行实用性的静态及网络RTK动态检测,分析探讨其GPS/RTK高程精度,为网络RTK高程测量的实际应用打下了坚实的基础,并为下一步网络RTK测高代替等级水准提供了研究方向。

Quasigeoid ascertaining,which is an important part of the modern survey benchmark system,could change the traditional way of Height survey.This paper estimated the precision of NingBo Quasigeoid by GPS static survey with the same precision,and analyzed the precision of GPS/RTK height by practical GPS static survey and network RTK survey.The paper made the base of the applying of network RTK height survey,and provided a research way for the replacement grade level survey by network RTK.