Detection and Analysis of BDS／GPS Data Quality in Complex Environments of Bridge
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摘要: 分别阐述了BDS／GPS多路径效应的产生机理以及相应的消除和削弱措施,利用统计分析方法对桥梁变形监测过程中复杂环境下监测点的BDS／GPS的多路径效应进行对比分析,以及分析BDS、GPS多路径误差与桥梁桥塔、缆索、车流量等影响因素的关系。实测数据结果表明,GPS的多路径效应值相比于BDS的GEO卫星较大,与IGSO卫星基本相同,优于MEO卫星;多路径误差与卫星高度角呈负相关关系;桥梁桥塔、缆索、车流量是影响多路径效应的重要因素。Abstract: The mechanism of BDS／GPS multipath effects and the corresponding elimination and weakening measures are described respectively in this paper. The statistical analysis method is used to analyze the BDS／GPS multipath effects of monitoring points in complex environments during bridge deformation monitoring. Moreover, the influences of bridge tower, cable, traffic flow on BDS／GPS multipath error are also investigated. According to the measured data, the following conclusions are drawn: compared with BDS satellites, the multipath effect value of GPS, is basically the same as that of IGSO satellite but larger than that of GEO satellite and superior to that of MEO satellite; the multipath error is negatively correlated with the satellite elevation angle; bridge tower, cable and traffic flow are key factors of the multipath effects.
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Key words:
- GPS /
- BDS /
- multipath effects /
- error analysis
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[1] 杨军,曹冲. 我国北斗卫星导航系统应用需求及效益分析［J］. 武汉大学学报(信息科学版),2004,29(9):775-778. [2] 张清华,隋立芬,贾小林,等. 北斗卫星导航系统空间信号误差统计分析［J］. 武汉大学学报(信息科学版),2014,39(3):271-274. [3] 邓兴升,孙虹虹,唐安雷. 高频单历元GPS双差解算及其精度分析［J］. 大地测量与地球动力学,2015,35(2):190 [4] 吴雨航,陈秀万,吴才聪. 利用信噪比削弱多路径误差的方法研究［J］. 武汉大学学报(信息科学版),2008,33(08):842-845. [5] 江楠,徐天河,许艳.中国IGS站多路径误差估计及其改进算法［J］. 大地测量与地球动力学,2013,33(2):143-146,150. [6] 戴吾蛟,丁晓利,朱建军,等. 基于经验模式分解的滤波去噪法及其在GPS多路径效应中的应用［J］. 测绘学报,2006,35(4):321-327. [7] 张波,黄劲松,苏林. 利用信噪比削弱GPS多路径效应的研究［J］. 测绘科学,2003,28(3):32 [8] GE LL，RIZOS C，HAN S W .et al. Multipath mitigation of continuous GPS measurements using an adaptive filter［J］.GPS Solutions,2000,4(2):19-30. [9] 戴吾蛟,伍锡锈,罗飞雪. 一种利用增广参数Kalman滤波的GPS多路径效应处理方法［J］. 武汉大学学报(信息科学版),2012,37(4):423-427. [10] 黄声享,李沛鸿,杨保岑,等. GPS动态监测中多路径效应的规律性研究［J］. 武汉大学学报(信息科学版),2005,30(10):877-880. -
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