| 深水多波束声呐测深数据精度评估 |
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| 引用本文： | 张国堙,陶春辉,王奡,邓显明,何拥华.深水多波束声呐测深数据精度评估[J].海洋学报,2017,39(11):106-114. |
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| 作者姓名： | 张国堙 陶春辉 王奡 邓显明 何拥华 |
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| 作者单位： | 1.国家海洋局第二海洋研究所, 浙江 杭州 310012;国家海洋局海底科学重点实验室, 浙江 杭州 310012 |
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| 基金项目： | 浙江省自然科学基金项目（LQ16D060008）；国家科技支撑计划项目（2014BAB14B01）。 |
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| 摘 要： | 多波束测深精度评估是水深测量质量控制的重要方面，静态精度评估与交叉测线动态精度评估能够从不同角度表征测深精度，估计测量样本的综合误差。在实际调查作业过程中，由于缺少水深真值，在进行精度估计时缺少可操作性。本文利用Kongsberg EM120型深水多波束系统的测深数据，基于某一区域的重复测量数据，应用中央波束的水深数据进行静态精度分析；通过引入网格化方法，进行动态水深精度评估分析，并通过偏差分析揭示测量样本的误差分布特征。结果表明，中央波束水深数据静态精度评估与基于网格化方法的动态精度评估具有实际可操作性，其结果能够有效估计测深的综合误差；重复测量数据的偏差分析能够有效展示误差的分布特征。
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| 关 键 词： | 多波束声呐 精度评估 误差分析 |
| 收稿时间： | 2016/10/27 0:00:00 |
| 修稿时间： | 2017/6/6 0:00:00 |
Accuracy evaluation of multibeam echo sounder bathymetry data |
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| Zhang Guoyin,Tao Chunhui,Wang Ao,Deng Xianming and He Yonghua.Accuracy evaluation of multibeam echo sounder bathymetry data[J].Acta Oceanologica Sinica (in Chinese),2017,39(11):106-114. |
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| Authors: | Zhang Guoyin Tao Chunhui Wang Ao Deng Xianming and He Yonghua |
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| Institution: | 1.Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China;Key Laboratory Submarine Geosciences, State Oceanic Administration, Hangzhou 310012, China2.Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China;Key Laboratory Submarine Geosciences, State Oceanic Administration, Hangzhou 310012, China;Institute of Geophysics and Geomatics, China Universtiy of Geosciences, Wuhan 430074, China |
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| Abstract: | Bathymetry accuracy evaluation of multibeam echo sounder is an important aspect of water depth measurement quality control. It is an effective method using the static data accuracy evaluation and cross line coverage data accuracy evaluation to estimate the depth samples error. In the actual investigation of the water depth, there is no data of the true water depth, so it is difficult to make statistics of the depth error. The depth data collected by Kongsberg EM120 is used to analysis, the static measurement statistics is calculated using the central beam data, then a grid method is applied to make statistics using the cross line coverage depth data. In addition, the distribution of the sample data total error is showed by the cross line coverage depth deviation. In conclusion, it is an effective way to using the statistics central beam data and the cross line coverage depth data for the water depth accuracy evaluation of multibeam echo sounder. |
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| Keywords: | multibeam echo sounder accuracy evaluation error analysis |
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