基于多波束测深数据的GRID_DDM构建方法评估及分析  

Evaluation and Analysis of GRID_DDM Modeling Based on Multi-beam Bathymetric Data

作　　者：赵希亮[1,2] 董箭[1,2] 张志衡[1,2] 王利伟[3] 

机构地区：[1]海军大连舰艇学院海洋测绘系,辽宁大连116018 [2]海军大连舰艇学院海洋测绘工程军队重点实验室,辽宁大连116018 [3]海军出版社,天津300450

出　　处：《地理空间信息》2017年第12期85-88,共4页Geospatial Information

基　　金：国家自然科学基金资助项目(41601498)

摘　　要：系统分析了现有格网数字水深模型(GRID_DDM)插值数学模型的优劣,针对高精度、高密度多波束测深数据,采用不同的建模方法进行GRID_DDM构建,定量评估相关插值方法的精度与效率。实验表明,剖分插值和自然邻点插值方法构建的GRID_DDM精度较高,且效率可被接受,是多波束测深数据GRID_DDM构建的优选方法。This paper systematically analyzed the mathematic interpolation models of GRID digital depth model(GRID_DDM), and quantitatively estimated the precision and efficiency of relative interpolation methods by applying different modeling methods in constructing GRID_DDM based on multi-beam bathymetric data. The experiments show that the subdivision interpolation and nature neighbor interpolation(NNI) methods are characterized by high precision, and the efficiency is also acceptable, which are the preference methods for GRID_DDM modeling based on multi-beam bathymetric data.

关 键 词：多波束测深数据 格网数字水深模型 精度与效率评估 适用性 

分 类 号：P229[天文地球—大地测量学与测量工程]