GPS拟合高程在大区域代替四等水准高程研究与应用  

Study and Application of GPS Fitting Elevation Replacing Four-class Level Elevation in Large Region

作　　者：缪志选[1] 李祖锋[1] 贾克宁[1] 蔺彦明 MIAO Zhixuan LI Zufeng JIA Kening LIN Yanming(Northwest Engineering Corporation Limited, Xi＇an 710065 ,China)

机构地区：[1]中国电建集团西北勘测设计研究院有限公司,西安710065

出　　处：《西北水电》2017年第3期31-33,共3页Northwest Hydropower

基　　金：中国水电工程顾问集团科技项目(项目编号:GWKJ-2012-21)

摘　　要：GPS高程拟合在生产中的应用大多处于研究阶段,其应用面受到多个因素制约,尚无普遍适用的成熟解决方案。作者通过多种拟合模型对比,基于多面函数模型算法的高程拟合模型,在进行大区域、高密度点位情况下的高程拟合精度指标较为理想,通过与实测的三等水准成果进行对比,有效地佐证了成果的可靠性。Application of GPS elevation fitting is at study stage. The application is restricted by factors. There is not any practical solution which is applicable generally. Through comparison of the multiple fitting models and in accordance with the elevation fitting model based on polyhedral function model calculation, the elevation fitting precision is as expected in conditions of large region and points in a high density. Compared with the survey of three-class level, reliability of the elevation fitting is effectively.

关 键 词：GPS 大区域 高程拟合 多面函数 水准精度 

分 类 号：TV221.1[水利工程—水工结构工程] P224[天文地球—大地测量学与测量工程]