| GPS数据质量控制中实时周跳探测研究 |
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| 引用本文： | 方荣新, 施闯, 魏娜, 赵齐乐. GPS数据质量控制中实时周跳探测研究[J]. 武汉大学学报 ( 信息科学版), 2009, 34(9): 1094-1097. |
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| 作者姓名： | 方荣新 施闯 魏娜 赵齐乐 |
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| 作者单位： | 1武汉大学卫星导航定位技术研究中心,武汉市珞喻路129号,430079;2武汉大学测绘遥感信息工程国家重点实验室,武汉市珞喻路129号,430079 |
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| 基金项目： | 国家863计划资助项目(2007AA12Z345)；国家973计划资助项目(2006CB701301) |
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| 摘 要： | 对传统的周跳探测理论和方法进行了改进,实现了非差载波相位周跳的实时探测。通过对Geome-try-free组合和Melbourne-Wbbena组合的特性进行分析,同时利用滤波技术,很好地实现了周跳的实时探测。对GPS车载动态数据以及星载GPS数据进行了仿实时模拟,实验结果表明,本文方法能实时地探测出1周的GPS非差载波相位周跳。
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| 关 键 词： | 数据质量 周跳 实时 探测 |
| 收稿时间： | 2009-07-15 |
| 修稿时间： | 2009-07-15 |
Real-time Cycle-slip Detection for Quality Control of GPS Measurements |
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| FANG Rongxin, SHI Chuang, WEI Na, ZHAO Qile. Real-time Cycle-slip Detection for Quality Control of GPS Measurements[J]. Geomatics and Information Science of Wuhan University, 2009, 34(9): 1094-1097. |
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| Authors: | FANG Rongxin SHI Chuang WEI Na ZHAO Qile |
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| Affiliation: | 1 Rearch Center of GNSS,Wuhan University,129 Luoyu Road,Wuhan 430079,China;2 State Key Laboratory of Information Engineering in Surveying,Mapping and Remote Sensing,Wuhan University,129 Luoyu Road,Wuhan 430079,China |
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| Abstract: | Based on the conventional theories of cycle-slip detection,a method is developed to detect cycle slips in real time for quality control.The method utilizes two linear combinations,the Geometry-free and Melbourne-Wübbena combinations.The characteristics of the two combinations are analyzed and the filer techniques are used to deal with the time series of combination observations.Real-time simulation tests are implemented using both vehicle kinematic data and on-board kinematic data.The results show that single-cycle slips can be reliably detected in real time. |
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| Keywords: | data quality cycle-slip real-time detection |
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