| GPS观测数据质量评价指标分析 |
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| 引用本文： | 郑广伟,徐思达,贾国宪,郑战辉.GPS观测数据质量评价指标分析[J].海洋测绘,2012(3):37-40. |
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| 作者姓名： | 郑广伟 徐思达 贾国宪 郑战辉 |
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| 作者单位： | 61365部队,天津300140 |
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| 摘 要： | 对GPS观测数据质量进行评价是作业中一项重要环节，现有分级评价模型中的闽值并没有统一的标准，影响评价结果的客观性。分析了2011年陆态网络工程2000个点位GPS观测数据的主要质量元素的数学精度分布规律，根据正态分布的数学模型，确定了分级评价指标。并以GPS综合检定场的实测数据为例，验证了评价指标的合理性。
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| 关 键 词： | GPS观测数据质量 评价指标 数学精度 |
Criteria Analysis of GPS Observational Data Quality |
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| ZHENG Guangwei,XU Sid,JIA Guoxian,ZHENG Zhanhui.Criteria Analysis of GPS Observational Data Quality[J].Hydrographic Surveying and Charting,2012(3):37-40. |
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| Authors: | ZHENG Guangwei XU Sid JIA Guoxian ZHENG Zhanhui |
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| Institution: | 1365 Troops, Tianjin 300140, China) |
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| Abstract: | It is important to evaluate the GPS observing data. The threshold values in current evaluating grade models have no criterion which influence the objectiveness of the observing data＇ s evaluation. In this paper statistical analyses have been carried out on main quality elements with 2000 stations＇ GPS observational data from CMONOC in 2011 and the related mathematical precision distribution rule has been found out. Consequently using the mathematical model of normal distribution the grade evaluation criteria indices have been determined. In the end the criteria indices have proved rational by evaluating GPS products quality observed in GPS integrated standardization site. |
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| Keywords: | GPS observing data quality evaluating standard mathematical precision |
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