联合不确定度的多期水深剖面分析方法及应用

doi:10.11947/j.AGCS.2020.20190188

测绘学报 ›› 2020, Vol. 49 ›› Issue (3): 386-395.doi: 10.11947/j.AGCS.2020.20190188

联合不确定度的多期水深剖面分析方法及应用

刘志豪^1,2,3, 赵荻能^2,3, 吴自银^2,3, 阳凡林¹, 王明伟^1,2,3, 周洁琼^2,3

1. 山东科技大学测绘科学与工程学院, 山东青岛 266590;
2. 自然资源部第二海洋研究所, 浙江杭州 310012;
3. 自然资源部海底科学重点实验室, 浙江杭州 310012

收稿日期:2019-05-13 修回日期:2019-08-16 发布日期:2020-03-24
通讯作者: 赵荻能 E-mail:zhaodineng@sio.org.cn
作者简介:刘志豪(1995-),男,工学硕士,研究方向为海底地形地貌探测。E-mail:zhliu0123@163.com
基金资助:
国家自然科学基金（41906069；41830540；41606057）；卫星海洋环境动力学国家重点实验室自主项目（SOEDZZ1802）；科技部科技基础性工作专项（2013FY112900）；"全球变化与海气相互作用"专项（GASI-EOGE-01）；公益性科研院所基本科研业务费专项资金重点项目（JZ1902）

A method of multi-stage bathymetric profile analysis combined uncertainty and its application

LIU Zhihao^1,2,3, ZHAO Dineng^2,3, WU Ziyin^2,3, YANG Fanlin¹, WANG Mingwei^1,2,3, ZHOU Jieqiong^2,3

1. College of Geomatics, Shandong University of Science and Technology, Qingdao 266590, China;
2. Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China;
3. Key Laboratory of Submarine Geosciences, Ministry of Natural Resources, Hangzhou 310012, China

Received:2019-05-13 Revised:2019-08-16 Published:2020-03-24
Supported by:
The National Natural Science Foundation of China (Nos. 41906069;41830540;41606057);The Project of State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography (No. SOEDZZ1802);The Fundamental Project of Science and Technology, Ministry of Science and Technology of People's Republic of China (No. 2013FY112900);The National Program on Global Change and Air-Sea Interaction Special Project (No. GASI-EOGE-01);The Key Project of Special Research Fund for Basic Scientific Research in Public Welfare Research Institutes (No. JZ1902)

摘要/Abstract

摘要： 单波束测深技术在近海及河口水深测量中被广泛应用，但受动态海洋环境的影响，很难有效获取不同时期同一位置的水深数据，这给快速变化的近海地形的准确对比与分析造成很大困难。针对该技术问题，本文提出了一种联合不确定度的多期水深剖面分析方法。通过初始不确定度计算、水深及不确定度传递、卡尔曼滤波更新等步骤构建时序地形剖面，并基于假设检验完成剖面地形演变分析。用两期次河口区单波束数据对算法进行了验证。结果表明，本文方法获取了可与实际地形剖面有效对比的水深剖面，并可对地形骤变区域作出准确评估，对于快速变化的河口水下三角洲尤其是航道区域的演变分析具有实际的应用价值。

关键词: 单波束测深, 水深剖面, 不确定度, 地形演变, 假设检验

Abstract: Single-beam sounding technology is widely used in hydrographic survey in coastal and estuary areas. However, due to dynamic marine environment, it is difficult to obtain the depth at the same location in different periods, which makes it difficult to accurately compare and analyze the rapidly changing seabed topography. In order to solve this technical problem, this paper proposes a method of multi-stage bathymetric profile analysis combined uncertainty. Bathymetric profiles in different periods are constructed by steps including initial sounding uncertainty calculation, bathymetric and uncertainty transmission, Kalman filter, etc. Then, the profiles are compared and the topographic evolution is analyzed based on hypothesis testing. The method is verified by two-stage single-beam data measured in estuary area. The result shows that the method can obtain bathymetric profiles effectively comparison with actual profiles, and accurately evaluate topography with abrupt changes, which is of practical value for the analysis of rapidly changing subaqueous topography in estuaries, especially for navigational channels.

Key words: single-beam sounding, bathymetric profile, uncertainty, topographic evolution, hypothesis testing

中图分类号:

P229

刘志豪, 赵荻能, 吴自银, 阳凡林, 王明伟, 周洁琼. 联合不确定度的多期水深剖面分析方法及应用[J]. 测绘学报, 2020, 49(3): 386-395.

LIU Zhihao, ZHAO Dineng, WU Ziyin, YANG Fanlin, WANG Mingwei, ZHOU Jieqiong. A method of multi-stage bathymetric profile analysis combined uncertainty and its application[J]. Acta Geodaetica et Cartographica Sinica, 2020, 49(3): 386-395.

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联合不确定度的多期水深剖面分析方法及应用

A method of multi-stage bathymetric profile analysis combined uncertainty and its application

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