摘要
多波束水体数据是水下物体后向散射强度数据,也是国内外的研究热点之一。本文系统的分析了旁瓣干扰对水体数据的影响,发现接收旁瓣干扰是影响多波束水体数据质量的关键因素。基于平坦海底情况下旁瓣干扰具有相同分布规律的特性,提出了一种适用于平坦海底的多波束水体数据处理方法。该方法在保留最小倾斜距离(Minimum Slant Range,MSR)内水体数据的基础上,可有效剔除MSR以外接收旁瓣干扰。通过模拟水体数据处理验证以及实测水体数据处理分析,发现该方法提高了水体数据中目标的识别能力。
The multibeam water column data(WCD) is backscatter data from underwater target. And it has become a hot spot of technical research. The influence of sidelobe inWCD is analyzed. It is suggested that receiving sidelobe interference is a key factor of effecting WCD quality. Based on the uniform distribution characteristics of receiving sidelobe interference in the flat seabed,authors propose aWCD processing method in flat area. This method can keep the data within minimum slant distance(MSR), and filter sidelobe interference beyond MSR. Simulated WCD and measured data obtained by Kongsberg EM122 multibeam system is processed by this method. It is found that this method can enhance the capacity inobject detection.
作者
权永峥
冯秀丽
丁咚
李广雪
秦浩森
王祥东
QUAN Yong-Zheng;FENG Xiu-Li;DING Dong;LI Guang-Xue;QIN Hao-Sen;WANG Xiang-Dong(College of Marine Geosciences , Ocean University of China , Qingdao 266100, China;Key Lab of Sea Floor Resource and Exploration Technique ,Ministry of Education , Qingdao 266100,China;Qingdao Blue Ocean Big Data Technology Co. LTD,Qingdao 266111,China;Laboratory for Marine Mineral Resources ,Qingdao National Laboratory for Marine Science and Technology, Qingdao 266580,China)
出处
《中国海洋大学学报（自然科学版）》
CAS
CSCD
北大核心
2019年第7期64-70,共7页
Periodical of Ocean University of China
基金
国家自然科学基金项目(41606066)资助~~
关键词
多波束
水体数据
旁瓣干扰
目标探测
multibeam
water column data
sidelobe
object detection
