Variance component estimation is a good method to resolve the problem. So the dissertation researched how to apply Helmert variance component estimation into GPS network adjustment, according to adjusting the baseline vectors’ weight to increase the precision.
本文研究了将Helmert方差分量估计方法应用于GPS网平差,通过调整单位权中误差,重新定权,使不同类型观测值之间的权比达到合理配置,提高平差精度。
参考来源 - GPS基线精度分析及控制网的方差分量估计研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The Helmert variance component estimation formula.
赫尔默特方差分量估计公式。
Objectives: To explore the applicability of two level variance component model in research on variability between interviewers.
前言：目的：探讨两水平方差成份模型在评价调查者间变异的应用价值。
Variance component model of the random effects of covariance matrix unit for the "Linear model introduction" matrix has been studied.
方差分量模型的随机效应的协方差为单位阵时《线性模型引论》已进行研究。
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