| 表层声速误差对多波束测深数据的影响分析 |
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| 引用本文： | 肖付民,黄毅,张永厚,边刚,兰莉莎.表层声速误差对多波束测深数据的影响分析[J].海洋测绘,2021(1):27-30. |
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| 作者姓名： | 肖付民 黄毅 张永厚 边刚 兰莉莎 |
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| 作者单位： | ;1.海军大连舰艇学院军事海洋与测绘系;2.91001部队;3.海图信息中心 |
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| 基金项目： | 国家自然科学基金(41876103；41576105) |
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| 摘 要： | 针对多波束水深测量中未明确定义表层声速限差范围,导致在数据采集过程中无法实时监控表层声速误差的问题,结合多波束数据采集与归算流程,分析并推导了SSP误差影响下的波束指向角与点位归算误差模型。结合数值计算,研究了不同水深下测深误差随SSP之间的变化规律与量级大小,从而针对SSP限差范围提出合理化建议,对提高数据质量具有一定应用价值。
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| 关 键 词： | 海道测量 多波束水深测量 表层声速 波束指向角 SSP误差 水深误差 |
Analysis of Surface Sound Speed Errors on Multibeam Sounding Data |
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| XIAO Fumin,HUANG Yi,ZHANG Yonghou,BIAN Gang,LAN Lisha.Analysis of Surface Sound Speed Errors on Multibeam Sounding Data[J].Hydrographic Surveying and Charting,2021(1):27-30. |
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| Authors: | XIAO Fumin HUANG Yi ZHANG Yonghou BIAN Gang LAN Lisha |
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| Abstract: | The problem that the surface sound velocity difference range was not clearly defined in the multibeam sounding,which leads to the inability to monitor the surface sound speed error in real time during the data acquisition process.Combined with the multi-beam data acquisition and reduction process,the error model of beam direction angle and point position under the influence of SSP error is analyzed and deduced.Through numerical calculations,the variation law and magnitude of the sounding error with SSP under different water depths are studied,and reasonable suggestions are put forward for the SSP tolerance range,which has certain application value for improving data quality. |
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