| 流动站与参考站不同采样率GPS数据的处理策略 |
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| 引用本文： | 王海涛,欧吉坤,袁运斌,柴艳菊.流动站与参考站不同采样率GPS数据的处理策略[J].武汉大学学报(信息科学版),2010(2). |
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| 作者姓名： | 王海涛 欧吉坤 袁运斌 柴艳菊 |
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| 作者单位： | 中国科学院测量与地球物理研究所动力大地测量学重点实验室;中国科学院研究生院; |
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| 基金项目： | 国家自然科学基金资助项目(40674012,40874018); 国家杰出青年基金资助项目(40625013); 国家863计划资助项目(2007AA12Z305,2007AA12Z311); 中国科学院知识创新工程领域前沿资助项目(0909141014) |
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| 摘 要： | 针对GPS流动站与参考站采用不同采样率的特殊应用情况,当观测数据不同步时,采用历元间的相位差分计算流动站的高精度"伪距",进而单独进行导航定位解算;当流动站与参考站观测数据同步时,采用双差模式。该方案不但充分利用了观测数据,而且可以节省数据采集和传输及运算的成本。飞机导航试验的数据解算表明,采用这种方法,流动站的定位精度可以达到cm级,而且位置更新率较高。
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| 关 键 词： | GPS动态差分定位 非同步观测数据 不同采样率 历元间相位差分 |
Strategy for Processing the Rover and the Reference Stations GPS Data with Different Sampling Rates |
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| WANG Haitao, OU Jikun YUAN Yunbin CHAI Yanju.Strategy for Processing the Rover and the Reference Stations GPS Data with Different Sampling Rates[J].Geomatics and Information Science of Wuhan University,2010(2). |
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| Authors: | WANG Haitao OU Jikun YUAN Yunbin CHAI Yanju |
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| Institution: | WANG Haitao1,2 OU Jikun1 YUAN Yunbin1 CHAI Yanju1(1 Key Laboratory of Dynamic Geodesy,Institute of Geodesy & Geophysics,CAS,340 Xudong Street,Wuhan 430077,China)(2 Graduate University of CAS,A19 Yuquan Road,Beijing 100039,China) |
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| Abstract: | In order to process the rover and the reference stations GPS data with different sampling rates,a reasonable strategy is presented.When the observations of the rover are nonsynchronous with those of the reference station,the position of the rover will be estimated with the calculated precise pseudo-ranges.Otherwise,the double difference(DD) model will be employed.The proposed method not only makes full use of the available data,but also saves the cost of data collection and transmission.An experiment was ca... |
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| Keywords: | kinematic GPS differential positioning nonsynchronous observation different sampling rate carrier phases between epochs |
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