GPS水准综合模型的应用研究  

Research on Application of Combined Model for GPS Leveling

作　　者：曹洋 

机构地区：[1]辽宁省基础测绘院,辽宁锦州121003

出　　处：《测绘与空间地理信息》2013年第11期129-132,137,共5页Geomatics & Spatial Information Technology

摘　　要：当前GPS水准拟合模型大多为单一拟合模型,其在应用方面都有各自的优点,但也存在缺陷与不足。针对这些单一拟合模型的不足,探讨两种更具优越性的GPS水准综合模型:加权综合模型和混合拟合模型。本文通过我院对某测区的实测GPS水准数据使用该两种综合模型和两种单一模型进行比较分析,结果表明:两种综合模型逼近高程异常的精度和可靠性均高于单一模型。The current GPS fitting model for GPS leveling fitting model is mostly single, its applications have their own advantages, but there are also shortcomings. In view of these single fitting model, two kinds of superior GPS standard of integrated model： weigh- ted model and mixed model. This article through our hospital on a test measuring GPS level data using the two comprehensive model and two single model are compared and analyzed, the results show that： two comprehensive model approximating abnormal height pre- cision and reliability are higher than that of the single model.

关 键 词：GPS水准 二次曲面模型 Shepard曲面模型 综合模型 

分 类 号：P228.4[天文地球—大地测量学与测量工程]