固定网格的CUBE曲面地形表征能力分析  

Analysis of CUBE surface topography characterization capability with fixed grid

作　　者：贾俊涛 申家双 王俊森 金绍华 陈长林 高莉 JIA Juntao;SHEN Jiashuang;WANG Junsen;JIN Shaohua;CHEN Changlin;GAO Li(Naval Research Institute,Tianjin 300061,China;Department of Military Oceanography and Hydrography,Dalian Naval Academy,Dalian,116018,China;Zhong Ke Great Wall Ocean Information System Co.,LTD.,Beijing 100085,China)

机构地区：[1]海军研究院,天津300061 [2]海军大连舰艇学院军事海洋与测绘系,辽宁大连116018 [3]中科长城海洋信息系统有限公司,北京100085

出　　处：《海洋测绘》2022年第4期74-77,共4页Hydrographic Surveying and Charting

基　　金：国家自然科学基金(41876103)。

摘　　要：多波束测深数据剔除粗差同时应保留海底地形信息,而保留海底地形信息的多少取决于自动滤波算法CUBE(combined uncertainty and bathymetry estimator)推估得到的CUBE曲面表征海底地形信息的能力。主要验证固定网格的CUBE曲面表征海底地形的能力,通过向海底地形数据中添加水下特征物,使用CUBE自动滤波算法处理后对比分析。试验得到以下结论:CUBE曲面可以较好地反映真实海底地形,但存在着水下特征物位置偏移、特征物浅点水深增加的情况。CUBE曲面变形情况不影响其作为多波束测深数据粗差剔除的参考曲面。The CUBE automatic filtering algorithm(Combined Uncertainty and Bathymetry Estimator) is widely used to remove gross errors from multibeam bathymetry data.The amount of retained topographic information depends on the ability of the estimated CUBE surface to characterize the topographic information of the seafloor.In this paper, the ability of the fixed-grid CUBE surface to characterize the seafloor topography is verified by adding underwater features to the seafloor topography data and using the CUBE automatic filtering algorithm for comparison and analysis.The CUBE surface deformation does not affect its ability to be used as a reference surface for coarse rejection of multibeam bathymetry data.

关 键 词：多波束测深 粗差剔除 曲面构建 CUBE曲面 地形表征 

分 类 号：P229.3[天文地球—大地测量学与测量工程]