| 多波束水深测量中声速误差的楔形表示法 |
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| 引用本文： | 金绍华,孙文川,暴景阳,肖付民,崔杨.多波束水深测量中声速误差的楔形表示法[J].海洋测绘,2015,35(3):11-15. |
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| 作者姓名： | 金绍华 孙文川 暴景阳 肖付民 崔杨 |
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| 作者单位： | 1. 海军大连舰艇学院海洋测绘系,辽宁大连116018;海洋测绘工程军队重点实验室,辽宁大连116018
2. 海军大连舰艇学院海洋测绘系,辽宁大连,116018 |
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| 摘 要： | 针对多波束水深测量时声速剖面对测深精度的控制问题,提出了一种声速误差楔形表示法。基于两个声速剖面,采用常梯度声线跟踪法分别对不同声速剖面下换能器照射区域内水深点位置进行模拟计算,最后通过比对得到波束覆盖范围内各水深点对应的测深误差估计值;将其采用楔形图进行表示,并对超出水深限差的水深区域进行标注,为评价声速剖面对水深精度的控制能力提供参考。
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| 关 键 词： | 声速剖面 声速误差 楔形表示 测深精度 测深误差估计 |
A Wedge Notation for Sound Velocity Error in Multibeam Sounding |
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| JIN Shaohu,SUN Wenchuan,BAO Jingyang,XIAO Fumin,CUI Yang.A Wedge Notation for Sound Velocity Error in Multibeam Sounding[J].Hydrographic Surveying and Charting,2015,35(3):11-15. |
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| Authors: | JIN Shaohu SUN Wenchuan BAO Jingyang XIAO Fumin CUI Yang |
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| Abstract: | Aimed at the effects of sound velocity profiles on sounding accuracy in multibeam sounding,a wedgenotation for sound velocity error is presented.Based on the two sound velocity profiles,the sounding point positionsin different transducer radiation areas are calculated simulatively using the constant gradient sound ray tracingmethod,and the corresponding estimated sounding error of each sounding point is gained in the beam coveragethrough comparison,which is noted with a wedge diagram,and the sounding area beyond the sounding limit erroris noted to provide reference in evaluating the effects of the sound velocity profile on the sounding accuracy. |
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| Keywords: | sound velocity profile sounding error wedge notation sounding accuracy estimation of sounding error |
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