A Method for Calculating Bottom Backscattering Strength Using Omnidirectional Projector and Omnidirectional Hydrophone

doi:10.1007/s11802-019-3785-x

CORC > 自然资源部第一海洋研究所 > 自然资源部第一海洋研究所 > 业务部门 > 海洋地质与地球物理研究室

	A Method for Calculating Bottom Backscattering Strength Using Omnidirectional Projector and Omnidirectional Hydrophone
	Yu, Kaiben 1,2,4; Yu, Shengqi 2; Liu, Baohua 2,4; Liu, Zhongchen 3; Yang, Zhiguo 2; Kan, Guangming 3,4; Zong, Le 2
刊名	JOURNAL OF OCEAN UNIVERSITY OF CHINA
	2019-04
卷号	18 期号:2 页码:358-364
关键词	acoustic scattering bottom backscattering strength fine sand Lambert's law
ISSN号	1672-5182
DOI	10.1007/s11802-019-3785-x
英文摘要	A method of obtaining bottom backscattering strength by employing an omnidirectional projector and omnidirectional hydrophone is proposed. The backscattering strength is extracted from monostatic backscattering data. The method was adopted in an experiment conducted in the South Yellow Sea of China. The seafloor surface was relatively smooth and covered by a small quantity of shell fragments, as observed through a digital camera system. Sampling data showed that the main component of the sediment at this experimental site was fine sand. In this paper, we detail the calculation method. Preliminary results of backscattering strength as a function of grazing angle (20 degrees-70 degrees) in the frequency range of 6-24 kHz are presented. The measured backscattering strength increased with the grazing angle and changed more rapidly at large grazing angles (60 degrees-70 degrees). A comparison of the data at different frequencies reveals that the measured backscattering strength substantially rises with the increase of acoustic frequency. A fitting curve of Lambert's law against the measured data shows that the backscattering strength deviates from Lambert's law at large grazing angles.
资助项目	Taishan Scholar Project Funding[tspd20161007]
WOS研究方向	Oceanography
语种	英语
出版者	OCEAN UNIV CHINA
WOS记录号	WOS:000467123800010
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/21514]
专题	业务部门_海洋地质与地球物理研究室
通讯作者	Yu, Shengqi
作者单位	1.Ocean Univ China, Coll Marine Geosci, Qingdao 266100, Shandong, Peoples R China 2.State Ocean Adm, Natl Deep Sea Ctr, Qingdao 266237, Shandong, Peoples R China 3.First Inst Oceanog, Key Lab Marine Sedimentol & Environm Geol, Qingdao 266061, Shandong, Peoples R China 4.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Marine Geol & Environm, Qingdao 266237, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Yu, Kaiben,Yu, Shengqi,Liu, Baohua,et al. A Method for Calculating Bottom Backscattering Strength Using Omnidirectional Projector and Omnidirectional Hydrophone[J]. JOURNAL OF OCEAN UNIVERSITY OF CHINA,2019,18(2):358-364.
APA	Yu, Kaiben.,Yu, Shengqi.,Liu, Baohua.,Liu, Zhongchen.,Yang, Zhiguo.,...&Zong, Le.(2019).A Method for Calculating Bottom Backscattering Strength Using Omnidirectional Projector and Omnidirectional Hydrophone.JOURNAL OF OCEAN UNIVERSITY OF CHINA,18(2),358-364.
MLA	Yu, Kaiben,et al."A Method for Calculating Bottom Backscattering Strength Using Omnidirectional Projector and Omnidirectional Hydrophone".JOURNAL OF OCEAN UNIVERSITY OF CHINA 18.2(2019):358-364.