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一种改进的GPS随机模型建模方法 被引量:2

An Improved Method for GPS Stochastic Modeling
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摘要 针对观测序列的异方差和时相关特性相互影响但又难以并行建模的问题,提出了一种迭代、序贯处理异方差和时相关问题的随机模型建模方案。实验结果显示,该方法较好地解决了异方差和时相关特性无法并行建模的难题,极大地消除了多路径及系统残余误差对GPS定位成果的影响,增加了基线数据处理的可靠性。 Heteroscedastic and time correlation characteristics of the GPS observation sequence are the main error structures for GPS stochastic modeling. When coping with such problem, the most difficult thing is that the abovementioned two factors could not be well taken into account at the same time. That is to say, stationary process or widely stationary process is the basic requirement when dealing with the time correlation analysis; and analogously, time independent is also the prerequisite to deal with the variance evaluation. To overcome such problem, a new method is proposed. With this method, the heteroscedastie and time correlation characteristics are needed to be considered in sequence. The experimental result proves that the method is correct; and also it shows that the positioning result and the corresponding reliability are greatly improved by the proposed method.
出处 《武汉大学学报(信息科学版)》 EI CSCD 北大核心 2008年第11期1110-1113,共4页 Geomatics and Information Science of Wuhan University
基金 国家自然科学基金资助项目(40771173) 国家863计划资助项目(2007AA12Z315)
关键词 GPS 时相关 随机模型 异方差 基线 GPS time-correlation stochastic modeling heteroscedastic baseline
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参考文献6

  • 1Han Shaowei. Carrier Phase-Based Long-Range GPS Kinematic Positioning [D]. New South Wales: The University of New South Wales, 1999
  • 2Satirapod C. Improving the GPS Data Processing Algorithm for Precise Static Relative Positioning [D]. New South Wales: The University of New South Wales, 2002
  • 3程葆伦.谈AR(P)模型及其应用[J].重庆职业技术学院学报,2003,12(3):117-118. 被引量:6
  • 4Wang Jinling. Stochastic Assessment of the GPS Measurements for Precise Positioning[C]. The 11th International Technical Meeting of the Satellite Division of the Isititute of Navigation, ION GPS-98, Nashville, Tennessee, 1998
  • 5谢衷洁.自回归模型拟合,参数模型的谱估计与AIC判阶准则[J].数理统计与管理,1985,4(1):38-42. 被引量:3
  • 6古扎拉蒂.计量经济学(下册)[M].北京:中国人民大学出版社,1996

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