海洋测绘2018，Vol.38Issue(3)：17-20,4.DOI:10.3969/j.issn.1671-3044.2018.03.005
内波对多波束测深影响仿真研究
Simulation Research on Influence of Internal Wave on Multibeam Echo Sounding
摘要
Abstract
In order to study the influence of internal wave on multibeam echo sounding,the internal wave modeling is used to analyze the acoustic ray-tracing in four sections in this paper.On this basis,the acoustic ray-tracing model for the curved gradient structure is deduced,and the simulation analysis is carried out according to the model.The simulation process is used to simulate the sound velocity ray-tracing process of the velocity gradient of the curved gradient structure using the constant gradient acoustic ray-tracing model.The simulation data are used to draw the sounding figures and the beam footprints are compared and analyzed.The simulation results show that the inner wave will bring a large number of spikes in the edge beam,which can not be eliminated by the traditional sound velocity correction model.The acoustic ray-tracing model for curved gradient structure can provide theoretical basis for further study of internal waves.In the end,the future research direction is prospected.关键词
多波束测深/内波/声线跟踪/脚印位置计算/声速改正Key words
multibeam echo sounding/internal wave/acoustic ray-tracing/footprint depth determination/sound velocity correction分类
天文与地球科学引用本文复制引用
朱小辰,许正君,占祥生,韩政..内波对多波束测深影响仿真研究[J].海洋测绘,2018,38(3):17-20,4.
