| 基于面积差的声速剖面自适应简化方法 |
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| 引用本文： | 郑根,张红梅,冯磊,赵建虎.基于面积差的声速剖面自适应简化方法[J].测绘学报,2018,47(10):1415-1423. |
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| 作者姓名： | 郑根 张红梅 冯磊 赵建虎 |
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| 作者单位： | 1. 武汉大学测绘学院, 湖北 武汉 430079;2. 武汉大学海洋研究院, 湖北 武汉 430078;3. 武汉大学动力与机械学院自动化系, 湖北 武汉 430072;4. 辽宁省海域和海岛使用动态监视监测中心, 辽宁 沈阳 110000 |
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| 基金项目： | 国家重点研发计划（2016YFB0501703；2016YFB0501700） |
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| 摘 要： | 提出了一种基于面积差的声速剖面自适应简化方法。首先，研究了不同声速剖面之间面积差与声线跟踪误差间的关系，建立了二者关系模型；然后，给出了基于跟踪精度约束的声速剖面简化方法和流程；最后，对该方法开展了试验验证，在无人工干预的情况下，方便地实现了声速剖面的简化，显著地提高了测深数据处理效率。
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| 关 键 词： | 声速剖面简化 面积差 等效声速剖面 声线跟踪误差 |
| 收稿时间： | 2017-05-04 |
| 修稿时间： | 2017-11-03 |
An Adaptive Simplification Method of SVP Based on Area Difference |
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| ZHENG Gen,ZHANG Hongmei,FENG Lei,ZHAO Jianhu.An Adaptive Simplification Method of SVP Based on Area Difference[J].Acta Geodaetica et Cartographica Sinica,2018,47(10):1415-1423. |
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| Authors: | ZHENG Gen ZHANG Hongmei FENG Lei ZHAO Jianhu |
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| Institution: | 1. School of Geodesy and Geomatics, Wuhan University, Wuhan 430079, China;2. Marine Research Institute, Wuhan University, Wuhan 430078, China;3. School of Power and Mechanical Engineering, Wuhan Universality, Wuhan 430072, China;4. The Sea and Islands Use Dynamic Monitoring Center, Shenyang 110000, China |
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| Abstract: | An adaptive method based on area difference is proposed. Firstly, the relationship between area difference and sound ray tracking bias is studied and the model is built. Then the simplification method and procedure of SVP are provided, which are based on the constraint of sound ray tracking accuracy. Finally, a deep water experiment is conducted to verify the proposed method and the simplification process is easily achieved without manual intervention. It improves the efficiency of bathymetric data processing remarkably to carry out ray-tracing with simplified sound velocity profile. |
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