| 顾及电离层改正精度信息的高精度单频单点定位方法研究 |
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| 引用本文： | 施闯,辜声峰,耿长江,宋伟伟.顾及电离层改正精度信息的高精度单频单点定位方法研究[J].武汉大学学报(信息科学版),2011(7):807-810. |
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| 作者姓名： | 施闯 辜声峰 耿长江 宋伟伟 |
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| 作者单位： | 武汉大学卫星导航定位技术研究中心;武汉大学测绘遥感信息工程国家重点实验室;武汉大学测绘学院; |
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| 基金项目： | 国家自然科学基金资助项目(40904007,41004014); 国家863计划资助项目(2007AA120603); 高等学校学科创新引智计划资助项目(b07037) |
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| 摘 要： | 提出了将电离层改正量作为虚拟观测值,参数估计随机模型顾及电离层改正量先验信息的高精度单频单点定位新方法,并推导出该方法的数学模型。实测数据解算定位结果表明,新方法能够实现中国高、中、低纬区域的无初始化高精度单频单点定位,其平面精度为0.1~0.2 m,高程精度为0.3~0.5 m。
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| 关 键 词： | 电离层改正量 随机模型 单频精密单点定位 |
High-Precision Single-Frequency Point Positioning with Randomness of Ionosphere Delay Correction in Consideration |
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| SHI Chuang, GU Shengfeng GENG Changjiang, SONG Weiwei.High-Precision Single-Frequency Point Positioning with Randomness of Ionosphere Delay Correction in Consideration[J].Geomatics and Information Science of Wuhan University,2011(7):807-810. |
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| Authors: | SHI Chuang GU Shengfeng GENG Changjiang SONG Weiwei |
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| Institution: | SHI Chuang1,2 GU Shengfeng1 GENG Changjiang1,3 SONG Weiwei1,3(1 Research Center of GNSS,Wuhan University,129 Luoyu Road,Wuhan 430079,China)(2 State Key Laboratory of Information Engineering in Surveying,Mapping and Remote Sensing,China)(3 School of Geodesy and Geomatics,China) |
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| Abstract: | Promote a new single-frequency point positioning method with the ionosphere delay correction as a virtual observation and taking the statistic information of the ionosphere delay correction into consideration in the parameter estimation stochastic model,and build the mathematic model of this method.Analyze the differences and similarities between this solution and two other solutions depending on ionosphere grid model and GRAPHIC combination respectively.The experiment result shows that position accuracy of... |
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| Keywords: | ionosphere delay correction stochastic model single-frequency precise point positioning |
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