An Adaptive SVP Simplification Based on Area Difference

作者：Gen ZHENG,Jianhu ZHAO,Hongmei ZHANG

摘要：Sound velocity profile(SVP)data is indispensable in the multi-beam data processing.The sampling density is of great importance for SVP to represent the vertical variation of sound velocity accurately and guarantee the accuracy of sound ray tracing(SRT).However,the SVP also affects the SRT efficiency significantly,especially in deep-sea multi-beam sounding data processing.To improve SRT efficiency and ensure SRT accuracy,an adaptive SVP simplification method based on area difference is proposed in this article.Firstly,the relationship between the area difference of the raw SVP and the simplified one and SRT bias is studied,and the relationship model of them is built.Then,by considering the constraint of SRT accuracy,the SVP simplification method and the simplifying SVP procedure SVP are given.Finally,a deep water experiment is conducted to verify the proposed method.Compared to the existing method,the proposed method improves the robustness,feasibility of SVP simplification as well as the accuracy and efficiency of SRT.

发文机构：School of Geodesy and Geomatics School of Electrical Engineering and Automation

关键词：SOUNDVELOCITYprofile(SVP)simplificationareadifferenceequivalentSVPSOUNDraytracing(SRT)biasmaximumoffsetofSOUNDvelocity(MOV)

分类号： X70[环境科学与工程—环境工程]