| GPS现代化后L2载波的数据质量分析 |
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| 引用本文： | 邱蕾,刘正平,伍岳,王海军. GPS现代化后L2载波的数据质量分析[J]. 测绘工程, 2015, 0(2): 6-9. DOI: 10.3969/j.issn.1006-7949.2015.02.002 |
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| 作者姓名： | 邱蕾 刘正平 伍岳 王海军 |
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| 作者单位： | 1. 深圳市地籍测绘大队,广东 深圳,518000;2. 湖北省地质环境总站,湖北 武汉,430034;3. 三峡大学 土木与建筑学院,湖北宜昌,443002;4. 二炮士官学校作战保障教研室,山东 青州,262500 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 从L2C码的信号结构、多路径效应和信噪比3个方面对实际采集到的观测数据进行分析,结果表明,新的L2C码采用了新的设计结构,其多路径效应与C/A码的多路径效应较为一致,且L2载波的信噪比得到明显提高。然后利用L1载波和L2载波分别求解双差模糊度,实验结果说明,加载了L2C码的L2载波和L1载波计算双差模糊度的效果一致,较原未加载L2C码的载波在模糊度解算效率上有显著的提高。
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| 关 键 词： | L2C码 信噪比 多路径效应 质量分析 整周模糊度 |
Quality analysis of L2 carrier date on GPS modernization |
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| QIU Lei,LIU Zheng-ping,WU Yue,WANG Hai-jun. Quality analysis of L2 carrier date on GPS modernization[J]. Engineering of Surveying and Mapping, 2015, 0(2): 6-9. DOI: 10.3969/j.issn.1006-7949.2015.02.002 |
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| Authors: | QIU Lei LIU Zheng-ping WU Yue WANG Hai-jun |
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| Affiliation: | QIU Lei;LIU Zheng-ping;WU Yue;WANG Hai-jun;Shenzhen Cadastral Surveying and Mapping Team;Geological Environmental Center of Hubei Province;Key Laoratory of Geological Hazards Controlling of Three Gorges Reservoir Area;Staff Room of Campaign guarantee,The Second Artillery Petty Officer School; |
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| Abstract: | The actual L2C signal is analyzed from the signal power ,multipath noise and fixing integer ambiguities .And through the experiments ,it can be concluded that the new civil code has better data quality and strong anti‐interference ability ,and the fixed integer ambiguities can be fixed by L2 carrier and L1 carrier with the same effect . |
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| Keywords: | L2C code signal-to-noise ratio multipath quality analysis ambiguity |
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