利用球冠谐模型研究GPS水准问题  

The spherical ca Pharmonic analysis of GPS leveling height

作　　者：王三军[1] 

机构地区：[1]同济大学测量系

出　　处：《测绘科学》2008年第2期13-14,共2页Science of Surveying and Mapping

摘　　要：本文是根据重力位在球冠面域内拉普拉斯方程解的表达式,尝试推导出了高程异常的球冠谐表达式,进而建立GPS水准高的球冠谐模型,该模型结合了重力位场的理论,考虑了水准高的物理意义,并且在同样分辨率下,相比球谐分析模型,系数大大减少。最后利用球冠谐模型对某测区GPS联测数据进行了试算,试算结果表明球冠谐模型对于解决GPS水准问题是可行的,并且得出了一些有意义的结果。Based on the gravity expression in the spherical ca Pfield, this paper educes the expression of the height anomaly and establishes the spherical ca Pharmonic analysis of GPS leveling height. Combining with the gravity theory, GPS leveling height has physics meaning, and compared with the spherical ca Panalysis, the parameters are fewer distinctly. The model is proved to be feasible and some significant results have been obtained by calculating some GPS data.

关 键 词：球冠谐 高程异常 GPS水准 

分 类 号：P228[天文地球—大地测量学与测量工程]