海洋测绘2017，Vol.37Issue(5)：64-67,4.DOI:10.3969/j.issn.1671-3044.2017.05.014
不同类型DDM相互应用的质量分析
A Quality Analysis of Exchanged Applications of Different Types of Digital Depth Models
摘要
Abstract
Digital Depth Model (DDM) is usually used either for navigation or for non-navigation.DDMs for navigation and non-navigation are respectively constructed based on their different requirements.The qualities,which are expressed when different types of DDMs are exchanged (DDM for navigation applied to non-navigation or DDM for non-navigation applied to navigation),are compared and analyzed.The experimental results demonstrate:the mean square error of DDM for navigation is larger than that of DDM for non-navigation,and a systematic offset is generated along shallow direction in DDM for navigation.The accuracy of DDM for navigation is lowered when applied to non-navigation,and the lowered degree becomes larger with a smaller scale.DDMs for non-navigation,without considering navigation safety,make the probability of an adequate depth obviously low,and it becomes lower with a smaller scale.Thus,DDM for non-navigation cannot be directly applied to navigation.关键词
海洋测绘/数字水深模型/中误差/整体偏差值/深度保证率/深度表达度Key words
hydrographic surveying and charting/digital depth model/mean square error/the whole offset/probability of an adequate depth/representativeness of depth分类
天文与地球科学引用本文复制引用
曹鸿博,张立华,张梅彩,夏雷..不同类型DDM相互应用的质量分析[J].海洋测绘,2017,37(5):64-67,4.基金项目
国家自然科学基金(41471380). （41471380）
