基于反射法的海底浅层沉积物声学原位测量方法  

Study on In-Situ Acoustic Measurement of Seafloor Shallow Sediments Based on the Reflection Method

作　　者：李琦[1] 刘颉[1] 黄翠[1] 

机构地区：[1]国家海洋技术中心,天津300112

出　　处：《海洋技术学报》2017年第3期27-33,共7页Journal of Ocean Technology

基　　金：国家海洋技术中心创新基金重点项目资助(Z-17005)

摘　　要：开展基于反射法的海底浅层沉积物声学原位测量方法研究,针对实际海洋环境中具有分层结构的沙或泥质沉积物,建立了具有粗糙界面的层状介质中球面波的三维反射模型,根据特点优化算法并建立海底沉积物特性参数快速反演方法,设计了海底浅层沉积物声学原位测量装置,该研究结果将为海底浅层沉积物快速实时原位精确观测提供科学依据。In this paper, a study is conducted on the method of in-situ acoustic measurement of seafloor shallow sediments based on the reflection method. According to a stratified porous medium seafloor including unconsolidated sediments composed of sand and mud in the marine environment, a 3D model of a spherical wave reflection on layered media with rough interfaces is developed by referencing relevant study results both at home and abroad. The algorithm and inversion method are optimized for the characteristic parameters of seafloor sediments, a quick inversion method is developed for the parameters of seabed shallow sediments, and a seabed acoustic in-situ measurement device will be designed according to the features of the model. The research results are of significance as a reference to implementing the scientific standards designed in the precise in-situ acoustic system for measuring seafloor shallow sediments.

关 键 词：浅层沉积物 三维反射模型 快速反演 原位 

分 类 号：TB566[交通运输工程—水声工程]