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GPS网平差中定权问题研究
引用本文:李凤霞,李惠霞,刘明星,朱兰艳.GPS网平差中定权问题研究[J].测绘工程,2009,18(4):35-37.
作者姓名:李凤霞  李惠霞  刘明星  朱兰艳
作者单位:1. 西安建筑科技大学建筑学院,陕西,西安,710055
2. 河南城建学院市政工程系,河南,平顶山,467000
3. 昆明理工大学国土资源工程学院,云南昆明,650093
摘    要:GPS观测数据之间大多存在比较强的相关性,同时还包含粗差、系统误差及偶然误差。传统的方法是利用先验方差阵进行经典平差,提出在保持相关观测量间相关性不变的条件下,用标称精度改正权进行经典平差,通过实验数据分析和比较,采用此方法对GPS网进行平差可取得满意的结果。

关 键 词:GPS网平差  标称精度    相关系数

The research of the weight determination in the adjustment of the GPS network
LI Feng-xia,LI Hui-xia,LIU Ming-xing,ZHU Lan-yan.The research of the weight determination in the adjustment of the GPS network[J].Engineering of Surveying and Mapping,2009,18(4):35-37.
Authors:LI Feng-xia  LI Hui-xia  LIU Ming-xing  ZHU Lan-yan
Institution:LI Feng-xia , LI Hui-xia, LIU Ming-xing , ZHU Lan-yan( 1. Faculty of Architecture, Xi'an University of Architecture and Technology, Xi'an 710055, China; 2. Department of Municipal Engineering, Henan Institute of Urban Construction, Pingdingshan 467000, China; 3. Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, China)
Abstract:Mostly, there is strong relevance among the GPS observation data; at the same time, it also includes blunder, systematic error and random error. The conventional method is using the transcendental variance to make classical adjustment, The paper puts forward marking and claiming precision to correct the weight , and then adjusts the network by comparing and analyzing the experiment data, believing that adopting this method to adjust GPS network can get satisfactory results.
Keywords:GPS network adjustment  marking and claiming precision  weight  correlating coefficient
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