| 空间飞行器单频GPS的双差电离层延迟仿真分析与研究 |
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| 引用本文： | 张斌,YUAN Yun-bin,欧吉坤,Li De-hai.空间飞行器单频GPS的双差电离层延迟仿真分析与研究[J].系统仿真学报,2008,20(9):2437-2440. |
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| 作者姓名： | 张斌 YUAN Yun-bin 欧吉坤 Li De-hai |
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| 作者单位： | 1. 中国科学院测量与地球物理研究所,武汉,430077;中国科学院研究生院,北京,100049;长江水利委员会长江勘测规划设计研究院长江空间信息技术工程有限公司安全监测工程公司,武汉,430010
2. 中国科学院测量与地球物理研究所,武汉,430077 |
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| 基金项目： | 国家自然科学基金，国家自然科学基金 |
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| 摘 要： | 以地面上空1100km,相距150km到200km的两飞行器为例,针对采用星载单频GPS高精度相对定位的要求,设计了三种卫星编队飞行方案,结合IRI2001电离层模型研究了空间飞行器单频GPS相对定位中电离层延迟量影响,对星载单频GPS卫星双差电离层延迟残差做了深入分析,得出了一些有参考价值的结论。
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| 关 键 词： | 双差 电离层延迟量 仿真 整周模糊度 |
Double-differential Ionospheric Delay Simulation Analysis Based on Onboard Single-frequency GPS of Space-aircraft |
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| ZHANG Bin,YUAN Yun-bin,OU Ji-kun,Li De-hai.Double-differential Ionospheric Delay Simulation Analysis Based on Onboard Single-frequency GPS of Space-aircraft[J].Journal of System Simulation,2008,20(9):2437-2440. |
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| Authors: | ZHANG Bin YUAN Yun-bin OU Ji-kun Li De-hai |
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| Abstract: | Three types of formation flight operational schemes were designed. They were combined with the IRI2001 model, to study the effect of ionospheric delay in relative positioning by onboard GPS of space-aircraft. Deep analyses also made for double-differential ionospheric delay of single frequency GPS onboard LEO satellite. Some useful conclusions were drawn for ambiguity solution in carrier phase positioning in such a case that two spacecraft with 1100KM high from the Earth and a distance from 150KM to 200KM. The residuals of double-differential ionospheric delay usually don't affect the solution of the ambiguity. |
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| Keywords: | double-difference ionospheric delay simulation ambiguity |
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