海洋测绘2018，Vol.38Issue(1)：23-26,42,5.DOI:10.3969/j.issn.1671-3044.2018.01.006
一种多波束测深声线跟踪自适应分层方法
A Self-adapting Division Method for Ray-tracing of Multibeam Echosounding
摘要
Abstract
In order to solve the conflict between the ray-tracing precision and the amount of computation,a self-adapting division method for ray-tracing of multibeam survey is presented.With the Douglas-Peucker algorithm,the original sound speed profile data is selected and divided,the division results with different threshold are given,and the ray-tracing results with equal interval division and self-adapting division are compared.The experiments show that the self-adapting division method can consider the change laws of sound structure,extract the sound speed changing node effectively and overcome the deficiency of artificial selection.In the case of same amount of computation,the ray-tracing accuracy of the self-adapting division method is better than the traditional equal interval division method.The method with a good engineering application value can effectively solve the conflict between the ray-tracing precision and the amount of computation.关键词
多波束测深/声线跟踪/Douglas-Peucker算法/等间隔分层/自适应分层/阈值Key words
multibeam echosounding/ray-tracing/Douglas-Peucker algorithm/equal interval division/self-adapting division/threshold分类
天文与地球科学引用本文复制引用
张志伟,暴景阳,金山..一种多波束测深声线跟踪自适应分层方法[J].海洋测绘,2018,38(1):23-26,42,5.基金项目
国家自然科学基金(41074002,41576105) （41074002,41576105）
国家安全重大基础研究(国防973). （国防973）
