| 精密单点定位用户自主式完备性监测算法 |
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| 引用本文： | 秘金钟,李玮,谷守周.精密单点定位用户自主式完备性监测算法[J].测绘学报,2011(Z1):63-67. |
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| 作者姓名： | 秘金钟 李玮 谷守周 |
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| 作者单位： | 中国测绘科学研究院;武汉大学测绘学院; |
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| 基金项目： | 国家863计划(2009AA121405); 国家自然科学基金(40874012) |
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| 摘 要： | 精密单点定位PPP是当前GNSS高精度定位中的关键技术之一,使用的PPP采用扩展卡尔曼滤波估计,未知参数包括站点坐标,接收机钟差,对流层延迟以及虚拟未知数。在QR奇偶检校法的基础上,重点考察设计矩阵向量间的相关距离,将其作为粗差探测和识别的研究对象。通过向量相关距离时间序列,可以区分单个粗差和多个粗差的粗差集。提出精密单点定位的RAIM算法,解决了精密单点定位中的质量控制问题,使得多个粗差的识别更加清晰和快捷。
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| 关 键 词： | 精密单点定位 用户自主式完备性监测 相关距离 完备性 |
Precise Point Positioning RAIM Method |
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| BI Jinzhong,LI Wei,GU Shouzhou .China Academy of Surveying , Mapping,Beijing ,China,.School of Geodesy , Geomatics,Wuhan University,Wuhan.Precise Point Positioning RAIM Method[J].Acta Geodaetica et Cartographica Sinica,2011(Z1):63-67. |
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| Authors: | BI Jinzhong LI Wei GU Shouzhou China Academy of Surveying Mapping Beijing China School of Geodesy Geomatics Wuhan University Wuhan |
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| Affiliation: | BI Jinzhong1,LI Wei2,GU Shouzhou1 1.China Academy of Surveying and Mapping,Beijing 100830,China,2.School of Geodesy and Geomatics,Wuhan University,Wuhan 430079 |
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| Abstract: | Precise point positioning(PPP)is one of the key technologies in GNSS high precise positioning.Extended Kalman filtering estimation is adopted in PPP,the estimated parameters including station coordinates,receiver clock offset,tropospheric delay and virtual parameters.Based on parity method,correlation distances of design matrix vectors are mainly studied and taken as research objects of detection and recognition of gross error.The set of single and multiple gross errors can be distinguished by using the cor... |
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| Keywords: | PPP RAIM correlation distance integrity |
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