多波束反向散射强度数据处理研究

唐秋华; 周兴华; 丁继胜; 刘忠臣; 杜德文

多波束反向散射强度数据处理研究

1.
中国海洋大学, 海洋地球科学学院, 山东, 青岛, 266003
2.
国家海洋局, 第一海洋研究所, 山东, 青岛, 266061
3.
香港理工大学, 土地测量及地理资讯学系, 香港

基金项目: 国家海洋局青年海洋科学基金资助项目——利用多波束声呐数据进行海底底质分类识别的研究(2002306);国家“863”资助项目——海底底质分类的多参数识别技术(2001A613004);国家“863”资助项目——多波束勘测声速剖面场的反演与应用研究(2004AA616080)

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出版历程
- 收稿日期: 2005-03-01
- 修回日期: 2005-08-15

Study on processing of multibeam backscatter data

1.
College of Marine Geosciences, Ocean University of China, Qingdao 266003, China
2.
First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China
3.
Department of Land Surveying and Geo-informatics, Hong Kong Polytechnic University, Hong Kong, China

摘要

摘要: 在探讨多波束测深系统反向散射强度与海底底质类型的关系基础上,研究影响反向散射强度的各种因素,主要分析了海底地形起伏、中央波束区反射信号对反向散射强度的影响,并给出了消除这些影响的方法;将处理后的“纯”反向散射强度数据镶嵌生成海底声像图,为海底底质类型划分以及地貌解译提供了基础数据和辅助判读依据.
- 声学遥感 /
- 多波束 /
- 反向散射强度 /
- 海底声像图 /
- 底质分类
Abstract: A new high precise source of data has recently become available using multibeam sonar systems in hydrography.The multibeam sonar systems can provide hydrogr aphic quality depth data as well as highresolution seafloor sonar images.The seafloor backscatter strength data of each beam are utilized from the multibeam sonar and the automatic classification technology,so that the seafloor type identification maps can be got.To analyze all kinds of error effects in backscatter strength data is based on the relationship between backscatter strength and seafloor types.Analyzing the influences of local bottom slope and near nadir reflection in backscatter strength data is emphasized on and the correction algorithms and results of these two influent factors are also given.After processing the raw backscatter strength data and correcting error effects,the processed backscatter strength data can be got which only reflect the features of seafloor types.Applying to the processed backscatter strength data and mosaicked seafloor sonar images,seafloor classification and geomorphy interpretation are engaged in.
- acoustic remote sensing /
- multibeam sonar systems /
- backscatter strength /
- seafloor sonar images /
- seafloor classification

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