| GNSS双频整周关系约束模糊度算法研究 |
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| 引用本文： | 冯威,黄丁发,严丽,李萌.GNSS双频整周关系约束模糊度算法研究[J].武汉大学学报(信息科学版),2012,37(8):945-948. |
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| 作者姓名： | 冯威 黄丁发 严丽 李萌 |
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| 作者单位： | 西南交通大学测量工程系,成都市二环路北一段111号,成都610031 |
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| 基金项目： | 国家863计划资助项目，国家自然科学基金资助项目 |
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| 摘 要： | 根据GNSS双频载波相位观测值间的特定关系,提出了一种基于双频整周关系约束的模糊度解算方法(FirCAR)。该方法在局部整数范围内可将载波相位的等效波长增长,以利于整周模糊度的快速解算。不同长度的基线数据实验证明了该算法的正确性和有效性,并分析了卫星截止高度角对解算结果的影响。
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| 关 键 词： | GNSS 整周模糊度解算 双频整周关系约束 |
GNSS Dual-Frequency Integer Relationship Constrained Ambiguity Resolution |
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| FENG Wei,HUANG Dingfa,YAN Li,LI Meng.GNSS Dual-Frequency Integer Relationship Constrained Ambiguity Resolution[J].Geomatics and Information Science of Wuhan University,2012,37(8):945-948. |
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| Authors: | FENG Wei HUANG Dingfa YAN Li LI Meng |
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| Institution: | 1(1 Department of Surveying and Mapping,Southwest Jiaotong University, 111 North Erhuan Road,Chengdu 610031,China) |
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| Abstract: | Based on the special relationship of dual-frequency carrier phase observations,GNSS dual-frequency integer relationship constrained ambiguity resolution(FirCAR) is proposed,which enlarges the equivalent wavelength of carrier phase in local integer rang,to achieve a fast integer ambiguity resolution.With the code pseudorange and dual-frequency carrier phase observations,the proposed method resolves integer ambiguities satellite by satellite independently.The correctness and effectiveness of this method have been tested by two baselines of different lengths;and the influence of cut-off angle is also analyzed. |
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| Keywords: | GNSS integer ambiguity resolution dual-frequency integer relationship con-straint |
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