摘要
全球重力场模型EGM96是全球性大地水准面模型,由该模型确定的重力大地水准面与测区似大地水准面存在一个系统差值。本文引入非线性半参数模型,用非参数分量表示该系统差值,进行数据处理,同时与多项式拟合法进行比较,证明了非线性半参数方法求解结果更好。
Because of the global gravity field model EGM96 is the global geoid model,determined by this model,the gravity and geoid and quasi-geoid measuring area exists a systematic error.This paper introduces the Nonlinear Semiparametric Model,using nonparametric component as a representation of system error,conducting data processing,and comparing with the traditional polynomial fitting,providing better results solved by nonlinear semiparametric method.
出处
《科技广场》
2013年第3期17-19,共3页
Science Mosaic
