复杂运动状态下的单频数据预处理方法研究
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摘要
分析了传统单频数据预处理方法在复杂运动状态下的缺陷,打破常规周跳探测基于时间序列的处理思维,提出基于双差的单频单站数据预处理方法。主要内容包括基于双差验后单位权中误差检测周跳发生的时刻;基于稳健估计的残差检测周跳发生的卫星;利用周跳回代估计进行周跳修复。通过模拟特定运动状态的动态数据及实测地震数据,验证了该方法在接收机复杂运动状态中的有效性及连续周跳探测的能力。
This paper analyzes the drawbacks of traditional single-frequency preprocessing method,only by analyzing time series,in complex movement and proposes single-frequency preprocessing method based on double differences. The method includes the following aspects:detect epochs of cycle slip based on posteriori standard error of unit weight of double difference,recognize satellites of cycle slip based on residuals of robust estimation and fix cycle slip by back-substitution of cycle slip. Finally,this paper investigates the efficiency of the new method in compound movement of receivers and its capacities to detect continuous cycle slips by simulating kinematic data and analyzing real earthquake data.
This paper analyzes the drawbacks of traditional single-frequency preprocessing method,only by analyzing time series,in complex movement and proposes single-frequency preprocessing method based on double differences. The method includes the following aspects:detect epochs of cycle slip based on posteriori standard error of unit weight of double difference,recognize satellites of cycle slip based on residuals of robust estimation and fix cycle slip by back-substitution of cycle slip. Finally,this paper investigates the efficiency of the new method in compound movement of receivers and its capacities to detect continuous cycle slips by simulating kinematic data and analyzing real earthquake data.
引文
[1]刘经南,叶世榕.GPS非差相位精密单点定位技术探讨[J].武汉大学学报.信息科学版,2002,28(3):234-239
[2]邰贺.单频GPS精密单点定位方法与实践[D].武汉:武汉大学,2007
[3]罗峰,姚宜斌,宋伟伟.综合利用多项式拟合和载波相位变化率探测单频GPS周跳[J].全球定位系统,2007(5):9-13
[4]贾沛璋,吴连大.单频GPS周跳检测与估计算法[J].天文学报,2001(5):192-197
[5]耿涛,赵齐乐,刘经南,等.基于PANDA软件的实时精密单点定位研究[J].武汉大学学报.信息科学版,2007(3):312-315
[7]Kouba J,Heroux P.Precise Point Positioning Using IGS Orbit and Clock Products[J].GPS Solutions,2001,5(2):12-28
[8]Gao Yang,Zhang Yufeng,Chen Kongzhe.Development of a Real-Ti me Single-Frequency Precise Point Positioning System and Test Results[C].ION GNSS19th International Technical Meeting of the Satellite Division,Fort Worth,Texas,2006
[2]邰贺.单频GPS精密单点定位方法与实践[D].武汉:武汉大学,2007
[3]罗峰,姚宜斌,宋伟伟.综合利用多项式拟合和载波相位变化率探测单频GPS周跳[J].全球定位系统,2007(5):9-13
[4]贾沛璋,吴连大.单频GPS周跳检测与估计算法[J].天文学报,2001(5):192-197
[5]耿涛,赵齐乐,刘经南,等.基于PANDA软件的实时精密单点定位研究[J].武汉大学学报.信息科学版,2007(3):312-315
[7]Kouba J,Heroux P.Precise Point Positioning Using IGS Orbit and Clock Products[J].GPS Solutions,2001,5(2):12-28
[8]Gao Yang,Zhang Yufeng,Chen Kongzhe.Development of a Real-Ti me Single-Frequency Precise Point Positioning System and Test Results[C].ION GNSS19th International Technical Meeting of the Satellite Division,Fort Worth,Texas,2006
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