| 测船非匀速直线测量引起的多波束测深误差分析 |
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| 引用本文： | 张鹏飞,王发省,辛明真,阳凡林.测船非匀速直线测量引起的多波束测深误差分析[J].海洋测绘,2018(3):30-34. |
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| 作者姓名： | 张鹏飞 王发省 辛明真 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) |
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| 摘 要： | 多波束测深系统作业的基本前提是测船保持匀速直线运动状态,而实际作业中非匀速运动状态下的多波束测量普遍存在,此时常用的基于加速度测量原理的测姿设备会受到影响。为此,在多波束测姿误差分析的基础上,针对直线加速、U型转弯两种情况下的测姿误差进行研究,通过INS测姿与GNSS三天线测姿的数据比较,对非匀速直线运动状态下姿态误差的影响特点及程度进行了分析。实验证明当测船做直线加速运动时,会使纵摇角产生较大误差;当测船转弯时,会使横摇角产生较大误差,这对指导多波束实际测量具有一定的参考价值。
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| 关 键 词： | 多波束测深 GNSS测姿 横摇 纵摇 航向角 非匀速直线测量 |
Error Analysis of Multi-beam Sounding Based on Nonuniform StraightLine Survey of the Survey Ship |
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| ZHANG Pengfei,WANG Faxing,XIN Mingzhen,YANG Fanlin.Error Analysis of Multi-beam Sounding Based on Nonuniform StraightLine Survey of the Survey Ship[J].Hydrographic Surveying and Charting,2018(3):30-34. |
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| Authors: | ZHANG Pengfei WANG Faxing XIN Mingzhen YANG Fanlin |
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| Abstract: | The basic premise of multi-beam sounding system for operating is to maintain survey ship in uniform linear motion,but multi-beam survey in the nonuniform motion state of the actual operation is ubiquitous,the commonly used attitude measuring device based on the principle of acceleration measurement will be affected at this time,however.Therefore,this paper is based on the analysis of multi-beam attitude error,and we study the attitude error in two cases of straight line acceleration and U type turning,then by comparing of data between INS attitude and GNSS three antenna attitude to annlysis the characteristics and degree of attitude error in non-uniform motion state.Experiments show that when the survey ship to do a straight line to accelerate the movement,this will make the pitch angle produce a greater error,and when the survey ship turns,this will make the roll angle to produce a greater error.It has a certain reference value for guiding the actual measurement of multi-beam. |
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