摘要
由GPS相对定位所建立的空间基线向量网，其方向与尺度基准是在最小二乘条件下由网的平差所定义，而网的位置基准，则决定于所采用的坐标近似值系统和平差的方法。本文详细讨论了卫星基线向量网位置基准的不同定义及其对网的平差结果的影响，同时推荐了位置基准的转换模型。这对于卫星网与地面网的联合平差是有重要意义的。
:
The orientation and scale datums of space baseline vector network established by GPS relative positioning are indirectly defined by some geometric and physical quantities as datums used for determination of the baseline vector in the positioning, and the opti mum estimates of the baselines are determined by the least squares adjustment of the network. Whereas the position datum of the network depends on the approximate value system and the method used fof the adjustment. The different definitions of position da tum of baseline vector network as well as its effects on the adjustment is discussed. And some models for transformation between different position datums are also discus sed, which would be important for the combined adjustment of satellite and terrestrial networks.
出处
《测绘学报》
EI
CSCD
北大核心
1991年第4期269-275,共7页
Acta Geodaetica et Cartographica Sinica
关键词
卫星网
地面网
基准
平差
测量
:Satellite Network, Terrestrial Network. Datum, Combined Adjustment
