| GPS网平差观测量选取的理论分析 |
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| 引用本文： | 施云江,曾旭平.GPS网平差观测量选取的理论分析[J].地理空间信息,2004,2(1):36-39. |
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| 作者姓名： | 施云江 曾旭平 |
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| 作者单位： | 长江委,三峡院,湖北,宜昌,443002;武汉大学GPS工程技术研究中心,湖北,武汉,430079 |
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| 摘 要： | 由多台GPS接收机在不同时段进行静态观测而组成的观测网形,当采用高精度的科研软件与常用商用软件解算基线时,其基线向量的方差阵不同,前者的方差阵结构是完全的、严密的。同时,在进行GPS网平差时,选取GPS基线的方式及数量的不同,构造的网形也就不同,采用不同的数学模型其得到的平差结果和精度指标也不相同。文章先从理论上进行分析,后用示例进行比较论证。
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| 关 键 词： | GPS网平差 独立基线 方差阵 精度分析 |
| 文章编号： | 1672-4623(2004)01-0036-04 |
| 修稿时间： | 2003年11月25 |
The Theory Analysis in Selecting of Observation Amount for Balancing of GPS Network |
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| Shi Yunjiang Zeng Xuping.The Theory Analysis in Selecting of Observation Amount for Balancing of GPS Network[J].Geospatial Information,2004,2(1):36-39. |
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| Authors: | Shi Yunjiang Zeng Xuping |
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| Institution: | Shi Yunjiang1 Zeng Xuping2 |
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| Abstract: | A GPS network comprises several simultaneous observable loops. It is different of the covariance of GPS baselines processed by GPS research software with that by GPS engineering software. The former covariance structure is more integrated and rigorous. The different selection and number results in the different GPS network structure. Meanwhile, the different math model leads the different adjustment result and precision. This paper focuses the study of GPS network adjustment theory firstly, and then makes a helpful analysis with an example. |
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| Keywords: | GPS network adjustment independent baseline covariance matrices precision analysis |
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