| 应用交叉检查数字地形模型评估多波束测深精度 |
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| 引用本文： | 陈坤,汤民强,贺惠忠,杨卫东,谢明芮,吴坤富.应用交叉检查数字地形模型评估多波束测深精度[J].海洋测绘,2018(4):34-38. |
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| 作者姓名： | 陈坤 汤民强 贺惠忠 杨卫东 谢明芮 吴坤富 |
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| 作者单位： | 国家海洋局南海调查技术中心;国家海洋局南海分局 |
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| 基金项目： | 南极周边海域海洋地球物理考察项目(CHINARE2017-01-03) |
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| 摘 要： | 为有效评估多波束测深数据精度,结合Sea Bat 7150深水多波束测量系统在海洋调查工作中的应用实例,参考传统的基于面的交叉检查方法,引入了基于DTM的交叉检查精度评估方法。应用检测线测量数据与主测线DTM进行交叉点计算,对误差进行统计分析,评估多波束测深精度。实践证明,该评估方法快速有效,可操作性强,可在外业调查现场对深水多波束测量数据快速进行精度评估。
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| 关 键 词： | 多波束测深系统 SeaBat 7150 精度评估 误差分析 数字地形模型 质量控制 |
Application of Cross-checking Digital Terrain Model to Evaluate Multi-beam Sounding Accuracy |
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| CHEN Kun,TANG Minqiang,HE Huizhong,YANG Weidong,XIE Mingrui,WU Kunfu.Application of Cross-checking Digital Terrain Model to Evaluate Multi-beam Sounding Accuracy[J].Hydrographic Surveying and Charting,2018(4):34-38. |
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| Authors: | CHEN Kun TANG Minqiang HE Huizhong YANG Weidong XIE Mingrui WU Kunfu |
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| Abstract: | In order to effectively evaluate the accuracy of multi-beam sounding data,combined with the application examples of SeaBat 7150 deepwater muti-beam measurement system in ocean survey,with the reference to the traditional surface based cross-check method,a cross-check accuracy assessment method based on DTM (digital terrain model)is introduced.Using check line measurement data and the main line DTM,an intersection calculation is done.The error is statistically analyzed to assess the multi-beam sounding accuracy.Practice has proved that the assessment method is fast,effective and operable,which can be used to give a quick accuracy evaluation of the deepwater multi-beam measurement data on the field investigation site. |
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