| 关联矩阵法在独立基线及独立双差模糊度选择中的应用 |
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| 引用本文： | 任锴, 宋小勇, 贾小林. 利用正交化方法确定独立基线及独立双差模糊度[J]. 武汉大学学报 ( 信息科学版), 2016, 41(7): 974-977. DOI: 10.13203/j.whugis20140262 |
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| 作者姓名： | 任锴 宋小勇 贾小林 |
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| 作者单位： | 1.地理信息工程国家重点实验室, 陕西 西安, 710054;2.西安测绘信息技术总站, 陕西 西安, 710054;3.西安测绘研究所, 陕西 西安, 710054 |
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| 基金项目： | 国家自然科学基金(41074020,41204020);地理信息工程国家重点实验室开放研究基金(SKLGIE2015-M-1-2)。 |
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| 摘 要： | 介绍了利用Gram-Schmidt正交化算法构建独立向量集的原理,并利用关联矩阵和向量权的思想构建独立基线向量集和独立双差模糊度向量集,讨论了三种构建双差模糊度向量的特点,给出了选择独立基线和独立双差模糊度的正交化算法。通过一个全球GPS网定轨算例,给出了计算结果,验证了方法的有效性。
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| 关 键 词： | Gram-Schmidt正交化 独立基线 独立双差模糊度 关联矩阵 |
| 收稿时间： | 2015-06-12 |
Improving Carrier-Phase Ambiguity Resolution in Global GPS Network Solution |
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| REN Kai, SONG Xiaoyong, JIA Xiaolin. Using Orthogonal Transformation Method to Select Independent Baselines and Independent Double-difference Ambiguities[J]. Geomatics and Information Science of Wuhan University, 2016, 41(7): 974-977. DOI: 10.13203/j.whugis20140262 |
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| Authors: | REN Kai SONG Xiaoyong JIA Xiaolin |
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| Affiliation: | 1.Skate Key Laboratory of Geo-Information Engineering, Xi'an 710054, China;2.Xi'an Technical Division of Surveying and Mapping, Xi'an 710054, China;3.Xi'an Research Institute of Surveying and Mapping, Xi'an 710054, China |
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| Abstract: | The principle of constructing independent vector sets using Gram-Schmidt orthogonal transformation is proposed. The method of setting independent baseline and independent double-difference ambiguity data sets refers to the idea of vertex incidence matrix and vector weight. The three ways to build double-difference ambiguity data sets are discussed. The computing process of selecting independent baselines and independent double-difference ambiguities is provided. An example of orbit determination using global GPS track nets is tested. The result shows that the orthogonal transform algorithm is effective. |
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| Keywords: | Gram-Schmidt method independent baselines independent double-difference ambiguity vertex incidence matrix |
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