| 基于最小二乘配置的GPS网平差模型及其应用 |
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| 引用本文： | 姚宜斌,陶本藻.基于最小二乘配置的GPS网平差模型及其应用[J].测绘学院学报,2003,20(1):4-6. |
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| 作者姓名： | 姚宜斌 陶本藻 |
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| 作者单位： | 武汉大学测绘学院 湖北武汉430079
(姚宜斌)，武汉大学测绘学院 湖北武汉430079(陶本藻) |
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| 基金项目： | 国家自然科学基金资助项目 ( 4 0 0 0 40 0 1) |
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| 摘 要： | 从最小二乘配置出发，推导了附加先验约束的高精度GPS网平差的参数估计和精度估计公式。分析了先验约束正确与否对平差结果所造成的影响，讨论了附加额外约束对平差结果及平差精度可能造成的影响，并提出了一个非常重要的用于确定附加约束是否有用的指标量。
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| 关 键 词： | 最小二乘配置 平差模型 GPS网 全球定位系统 数据处理 |
The Adjustment Model of GPS Network with Least Squares Collocation |
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| YAO Yi bin,TAO Ben zao.The Adjustment Model of GPS Network with Least Squares Collocation[J].Journal of Institute of Surveying and Mapping,2003,20(1):4-6. |
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| Authors: | YAO Yi bin TAO Ben zao |
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| Abstract: | Substantively to say, the adjustment model of GPS network with apriori constraint is a kind of Least Squares Collocation model. The formulaes of parameter estimation and precision estimation based on Least Squares Colllocation is presented. The systematical investigates on the influences of apriori coordinate constraint and apriori precision constraint are made. And we also provide a quantity indicating whether an additional constraint is useful or not. Some general principles on the choice of apriori constraint in adjustment is also discussed. |
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| Keywords: | collocation net adjustment apriori constraint |
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