海洋测绘2018，Vol.38Issue(3)：21-25,5.DOI:10.3969/j.issn.1671-3044.2018.03.006
不同尺度DDM的深度保证率变化规律研究
Study on the Change Rule of Probability of an Adequate Depth for DDM with Different Scales
摘要
Abstract
In view of the problem of a lack of navigation safety estimation for digital depth model(DDM)constructed from depth data,which is thinned from high density multi-beam bathymetric data,DDM is constructed from thinned depth data based on three commonly used methods,the shallowest point method,the nearest point method and mean value method;the change rules of probability of an adequate depth for DDM construction from different thinning methods with the scale change are analyzed;and a mathematical regression model is established among probability of an adequate depth of DDM,thinning scale and submarine terrain complexity factor by statistical analysis.The experimental results demonstrate that this regression model can not only be used to estimate probability of an adequate depth of DDM construction based on different thinning methods,but also provide a theoretical basis for determining thinning scale needed to meet the suitable probability of an adequate depth of DDM.关键词
海洋测绘/深度保证率/抽稀尺度/最浅点法/最近点法/平均值法Key words
hydrographic surveying and charting/probability of an adequate depth/thinning scale/the shallowest point method/the nearest point method/mean value method分类
天文与地球科学引用本文复制引用
曹鸿博,张立华,贾帅东,刘现鹏..不同尺度DDM的深度保证率变化规律研究[J].海洋测绘,2018,38(3):21-25,5.基金项目
国家自然科学基金(41471380). （41471380）
