| 三频载波相位伪距平滑算法分析与比较 |
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| 引用本文： | 刘增军,郑彬,刘文祥,欧钢.三频载波相位伪距平滑算法分析与比较[J].测绘科学,2012,37(6):15-18. |
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| 作者姓名： | 刘增军 郑彬 刘文祥 欧钢 |
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| 作者单位： | 国防科技大学电子科学与工程学院卫星导航研发中心,长沙,410073 |
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| 摘 要： | 针对现代化卫星导航系统的三频新特点,本文推导了利用多频载波相位平滑单频伪距及组合伪距的一般算法,提出通用的计算方程和解析表达式,比对了三频GNSS系统中的3种平滑算法,并进行实测数据验证和分析。理论分析表明三频二阶伪距平滑算法噪声方差性能最差,三频一阶伪距平滑算法噪声方差性能与双频伪距平滑算法相当。
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| 关 键 词： | 三频 多路径 载波相位平滑伪距 电离层延时 |
Analysis and Comparison on algorithms of carrier phase smoothing pseudorange in three-frequency GNSS |
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| LIU Zeng-jun
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ZHENG Bin
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LIU Wen-xiang
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OU Gang.Analysis and Comparison on algorithms of carrier phase smoothing pseudorange in three-frequency GNSS[J].Science of Surveying and Mapping,2012,37(6):15-18. |
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| Authors: | LIU Zeng-jun ZHENG Bin LIU Wen-xiang OU Gang |
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| Institution: | (College of Electronic Science and Engineering,National Univ.of Defense Technology,Changsha 410073,China) |
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| Abstract: | According to the new property of three-frequency in modern GNSS,general algorithm of smoothing single pseudorange and combined pseudorange using multi-frequency carriers phase was provided,general equations and analytical expression was presented,and three smooth algorithms were compared.It was illuminated by theoretic analyzing that three carriers-second order has the worst standard variance of residual error and three carriers-first order has almost equal standard variance of residual error with dual carriers-first order. |
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| Keywords: | three-frequency multipath carrier phase smoothing pseudorange ionospheric delay |
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