摘要
建立了ＧＰＳ网平面坐标转换的约束平差模型，给出了对转换后ＧＰＳ网的精度进行评定的协方差阵，从序贯平差的角度解释了经约束平差后ＧＰＳ网精度降低的原因。通过对一实例的计算分析，提出一些在进行ＧＰＳ坐标转换的数据处理过程中应注意的问题。
This paper introduces a constrained adjustment model of horizontal coordinte
transformation of GPS network, gives the covariance matrix for evaluating the accuracy of that and
describes why the accuracy of GPS network is reduced in the constrained adjustment.
出处
《工程勘察》
CSCD
北大核心
1999年第3期57-61,共5页
Geotechnical Investigation & Surveying
关键词
GPS
坐标转换
约束平差
GPS network, coordinte transformation
