| 基于Kongsberg EM多波束的Snippet数据处理方法 |
| |
| 引用本文： | 胡 俊,吴永亭,豆虎林,李治远.基于Kongsberg EM多波束的Snippet数据处理方法[J].海洋科学进展,2020,38(4):717-724. |
| |
| 作者姓名： | 胡 俊 吴永亭 豆虎林 李治远 |
| |
| 作者单位： | 自然资源部 第一海洋研究所,山东 青岛 266061 |
| |
| 基金项目： | 自然资源部第一海洋研究所科技开发横向项目——声呐实验和数据处理算法研究(SE2019ZCYF0023) |
| |
| 摘 要： | 多波束声呐记录的海底后向散射片段(Snippet)数据处理成角度响应曲线和地理编码(Mosaic)图像可以
帮助识别海底底质类型和反映地貌形态,这一过程包括辐射校正、角度响应改正(AVG)和几何地理编码,但不同的多波束系统硬件在辐射校正和角度响应改正方法上存在差异且传统处理方法忽略了声呐系统本身的指向性模型随时间变化的事实。以声呐方程为基础,针对Kongsberg EM 多波束系统提出了一套完整的Snippet数据处理流程,并分析了各步骤中存在的可变性,给出了每一步的处理建议,最后将此方法应用于EM2040浅水多波束实测数据,并验证了该方法的有效性和实用性。
|
| 关 键 词： | 多波束 后向散射强度 辐射校正 处理流程 |
Snippet Data Processing Based on Kongsberg EM Multibeam Echo Sounder |
| |
| HU Jun,WU Yong-ting,DOU Hu-lin,LI Zhi-yuan.Snippet Data Processing Based on Kongsberg EM Multibeam Echo Sounder[J].Advances in Marine Science,2020,38(4):717-724. |
| |
| Authors: | HU Jun WU Yong-ting DOU Hu-lin LI Zhi-yuan |
| |
| Institution: | First Institute of Oceanography, MNR, Qingdao 266061, China |
| |
| Abstract: | Seabed backscatter recorded by multibeam echo sounder can be processed into angular response curves and mosaic images to help identify seabed substrate types and reflect geomorphic patterns. From the original backscatter intensity data to the final angular response curve and geocoded image, radiometric correction, angular response correction and geometric geocoding are required, but different MBES hardwares use different radiometric correction and angular response correction methods and the traditional processing method ignored the directivity model of the sonar system changes over time. According to the sonar equation, this paper based on the Kongsberg EM MBES puts forward a set of standardized Snippet data processing procedures and analyzes the variability of each processing step. Finally, this method is applied to shallow water multibeam data measured by EM2040 and the practicability of the proposed method is verified. |
| |
| Keywords: | multibeam echo sounder backscattering intensity radiation correction processing flow |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《海洋科学进展》浏览原始摘要信息 |
| 点击此处可从《海洋科学进展》下载免费的PDF全文 |
|
