| 关于多波束声速剖面改正问题的探讨 |
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| 引用本文： | 周坚,周青,吕良,陈春,黄海轮.关于多波束声速剖面改正问题的探讨[J].海洋测绘,2014(4):62-65. |
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| 作者姓名： | 周坚 周青 吕良 陈春 黄海轮 |
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| 作者单位： | [1]92899部队,浙江宁波315200; [2]92292部队,山东青岛266405 |
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| 摘 要： | 简要介绍了声线跟踪计算中比较精确的常梯度声线跟踪算法,针对实际声速剖面测量中可能出现的随机误差和整体偏差两种情况,分别设计了相对应的模拟声速剖面,然后采用常梯度声线跟踪算法计算波束脚印,分析声速剖面误差对波束脚印计算的影响,给出了实际多波束测量作业中声速剖面测定密度和间隔的建议。
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| 关 键 词： | 多波束测深 声速剖面 入射角 波束脚印 常梯度声线跟踪算法 |
Discussion of Multibeam Sound Velocity Profile Correction |
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| Institution: | ZHOU Jian ,ZHOU Qing ,LU Liang ,CHEN Chun ,HUANG Hailun ( 1. 92899 Troops, Ningbo 315200, China; 2. 92292 Troops, Qingdao 266405, China) |
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| Abstract: | This paper briefly introduces the more accurate constant gradient sound ray tracking algorithm in sound ray tracking calculation. In view of the possible random error and the overall deviation in the actual sound velocity profile measurement, we design the corresponding analog sound velocity profile, respectively, then use the constant gradient sound ray tracking algorithm to calculate beam footprints, analyze the impact of sound velocity profile error on the calculation of beam footprints, and gives the suggestion for measuring density and interval of the sound velocity profile in the actual multibeam measurement operation. |
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| Keywords: | multibeam echosounding sound velocity profile angle of incidence beam beam footprint constant gradient sound ray tracking algorithm |
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