摘要
海底特殊地形在多波束勘测后处理时经常遇到但又极易被忽视,导致具有重要地学和工程意义的特殊地形未能被反映在成果图上。通过分析后处理中的常见问题,提出了利用水深残差法搜索定位多波束海量数据中存在的局部特殊地形,进而提取特殊地形的水深浅点和深点的处理方法。该方法在国家海洋勘测专项中取得了很好的应用效果。
The frequently encountered problem is the special terrain on seabed,which is often ignored when processing multi-beam bathymetric data.It represents that the key special terrain is missed on chart.The paper analysed the reasons and gave a quantitative measure to process the special terrain from multi-beam bathymetric data by calculating residuals.This method is applied to a national marine survey project and the result is remarkable.
出处
《海洋测绘》
2004年第3期16-19,共4页
Hydrographic Surveying and Charting
关键词
多波束勘测
特殊地形
残差
后处理
multi-beam survey
special terrain
residuals
post-processing
