海洋科学2023，Vol.47Issue(10)：76-86,11.DOI:10.11759/hykx20221013001
基于相位差测深声呐(PDBS)技术的莱州湾人工鱼礁探测
Artificial reef exploration based on Phase Differencing Bathymetric Sonar in Laizhou Bay
摘要
Abstract
Phase Differencing Bathymetric Sonar(PDBS),also known as Interferometric Sonar,can collect bathy-metric point cloud data and dual-frequency side-scan sonar images simultaneously.It is suitable for a wide range of offshore artificial reef explorations.In this paper,Edge Tech 6205 integrated topographic and geomorphic survey equipment based on PDBS principles was used to conduct full coverage detection of a marine pasture reef casting area in an area of Laizhou Bay and to obtain high-precision bathymetric data and dual-frequency side-scan sonar images.The water depth data were calculated with topographic feature variables,and the micro-topography features of the study area were described in detail.The boundary of fish reefs was identified accurately by multi-data fusion combined with side-scan sonar images.Based on this,the spatial analysis method in the geographic information system is used to calculate and statistically evaluate the underwater physical parameters of artificial reefs.Addi-tionally,the causes of topography and evolution patterns in the study area are discussed.Finally,it is demonstrated that the offshore artificial reefs detection technology based on PDBS has many advantages,such as high efficiency,low cost,and high precision.Results show that the water depth in the study area is between 4.1 and 7.3 m,and there is a large seabed fluctuation in the distribution area of reefs and obvious subsidence and scour around reefs.The total area of the reef accounted for 14.04%of the study area,and the total empty space was 2 528.22 m3.The height of the reef was between 1.26 and 3.63 m,with a normal distribution.This study provides data and technical support for the exploration of offshore artificial reefs and has strong practical significance.关键词
PDBS/人工鱼礁/莱州湾/海洋牧场/多数据融合Key words
PDBS/artificial reef/Laizhou Bay/marine ranching/multiple data fusion分类
海洋科学引用本文复制引用
刘玉斌,张建兴,宋永东,张毅涵,栾振东..基于相位差测深声呐(PDBS)技术的莱州湾人工鱼礁探测[J].海洋科学,2023,47(10):76-86,11.基金项目
山东省重点研发计划"海洋牧场生物资源养护关键技术与设备研发及应用示范"(2019JZZY020708) （2019JZZY020708）
企业委托项目"蓝色海洋海洋牧场地形扫测"(E22225101I)Shandong Province Key Research and Development Program"Marine Ranch Biological Resources Conservation Key Technologies and equipment Research and Development and Application Demonstration",No.2019JZZY020708 （E22225101I）
Enterprise commissioned project"Blue Ocean Marine Ranch Terrain Survey",No.E22225101I （）
