摘要
整体大地测量以严格的概念将各类大地测量观测值统一于同一模型。然而，观测值的分工以及观测值对点位几何参数和重力场参数的贡献却是截然不同的。本文先从模型方程出发，分析了各类观测值的分工与贡献。为使结论明细，我们将重力向量观测值、重力位差观测值分成与大地点重合和不重合两种情况讨论；把它们对几何参数的贡献分成直接贡献（直接对几何参数的系数产生影响）和间接贡献（通过重力参数而对几何参数产生影响进行讨论；各类观测值对重力场参数的贡献分解成为扰动位的子午分量、卯酋分量和垂直分量的贡献。通过对模型的定量分析与实际计算，提出了一些具有实际意义的观点。
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All geodetic observations of different kinds are unified in an identical model accor-
ding to the rigorous coricept of integrated geodesy However their respective roles and
contributions to the geometric parameters of positions and to the parameters of gravity
field are radically different.Starting with the equations of the model the respective
roles and contributions of geodetic observations of different kinds are analysed In order
to reach distinct conclusions the observations of gravity vector and those of poteritical
difference are discussed for two cases colocation and non cololocation of gravity point and
geodetic points Aeeordingly the contributionsof these observations to the geometric pa-
rameters are divided into direct ones and indirect ones The former are their direct ef-
fects on the geometric parameters the latter are their indirect effects on these parameters
by passing through gravity parameters The contributions of geodetic obseryations of
different kinds to disturbing potentials are divided into merional contribution enst-west
one and vertical one Through quantitative analysus and practical computation some
vlewpoints which have great practical significance are proposed
出处
《测绘学报》
EI
CSCD
北大核心
1989年第3期232-238,共7页
Acta Geodaetica et Cartographica Sinica
