| GNSS船姿测量方法及对多波束测深精度的影响分析 |
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| 引用本文： | 王发省,张鹏飞,辛明真,杜凯,阳凡林.GNSS船姿测量方法及对多波束测深精度的影响分析[J].海洋通报,2018(5):529-536. |
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| 作者姓名： | 王发省 张鹏飞 辛明真 杜凯 阳凡林 |
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| 作者单位： | 山东科技大学测绘科学与工程学院;海岛(礁)测绘技术国家测绘地理信息局重点实验室 |
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| 基金项目： | 国家重点研发计划 （2016YFB0501700；2016YFB0501705）；山东省重点研发计划项目 （2018GHY115002） |
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| 摘 要： | GNSS船姿测量以其观测误差不随时间累积的特点得到了广泛研究和应用,本文基于三天线GNSS船姿测量方式,构建了波束脚印误差与姿态误差间的关系模型,设计仿真实验分析了基线长度对姿态误差的影响,以及不同水深环境下姿态误差与GNSS定位误差的关系。为突破传统RTK在测量距离上的限制,本文采用PPP、PPK、MBD (动态参考站差分)三种方法进行GNSS船姿计算,并通过海上实验与高精度惯性导航系统进行对比分析,结果表明使用MBD测姿结果要优于PPK和PPP模式,得到的航偏角、横摇角、纵摇角标准差均在0.1°左右,可满足通常情况下多波束测深对姿态精度的要求。
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| 关 键 词： | GNSS 测姿 姿态误差 波束脚印误差 定位误差 惯性导航系统 |
| 收稿时间： | 2017/8/7 0:00:00 |
| 修稿时间： | 2017/12/20 0:00:00 |
GNSS attitude measurement and its influence on the precision of multibeam bathymetry system |
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| WANG Fa-xing,ZHANG Peng-fei,XIN Ming-zhen,DU Kai and YANG Fan-lin.GNSS attitude measurement and its influence on the precision of multibeam bathymetry system[J].Marine Science Bulletin,2018(5):529-536. |
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| Authors: | WANG Fa-xing ZHANG Peng-fei XIN Ming-zhen DU Kai and YANG Fan-lin |
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| Institution: | College of Geomatics, Shandong University of Science and Technology, Qingdao 266590, China,College of Geomatics, Shandong University of Science and Technology, Qingdao 266591, China,College of Geomatics, Shandong University of Science and Technology, Qingdao 266592, China,College of Geomatics, Shandong University of Science and Technology, Qingdao 266593, China and College of Geomatics, Shandong University of Science and Technology, Qingdao 266590, China; Key Laboratory of Surveying and Mapping Technology on Island and Reef, National Administration of Surveying, Mapping and Geoinformation, Qingdao 266590, China |
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| Abstract: | The GNSS attitude measurement is widely studied and applied because its observation error does not accumulate with time. In this paper, based on the principal of ship attitude measurement with three GNSS antenna, we set up the model of beam footprint error change with attitude error, designed the simulation analysis on the effect of baseline length on attitude error and the relationship between attitude error and GNSS positioning error in different depths. To break through the limitations of traditional RTK in measuring distance, three methods of PPP, PPK and MBD ( Moving Base Station Difference) were applied in this paper for GNSS ship attitude calculation and compared with the high precision inertial navigation system in the sea experiment. Results prove that when using MBD pose measurement the result is superior to the PPK and the PPP model, moreover the heading, roll and pitch standard deviation are around 0.1°, which can meet multibeam sounding accuracy requirement of position in normal circumstances. |
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| Keywords: | GNSS measuring posture attitude error beam footprint error positioning error inertial navigation system |
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