海底沉积物物理参数的声学反演模式  

Acoustic inversion models of physical parameters of seabed sediments

作　　者：邹大鹏[1] 吴百海[1] 卢博[2] 曾洁莹[1] 张文凡[1] 

机构地区：[1]广东工业大学机电学院,广东广州510090 [2]中国科学院南海海洋研究所边缘海地质重点实验室,广东广州510301

出　　处：《海洋学报》2008年第5期17-22,共6页

基　　金：国家自然科学基金资助项目(40676040);中国科学院声场声信息国家重点实验室资助项目(200801)

摘　　要：声学反演方程是声学探测沉积物物理参数的基础方程。基于声学理论和统计理论的声速反演沉积物物理参数的两种模式,运用南海海底沉积物声学物理数据验证、比较了两种反演模式,以反演孔隙度、含水量为例,得出基于双参数经验方程反演模式的适用性较强,但精度有待于提高;基于声速理论的反演模式反演南海海底沉积物物理参数有待于进一步完善。The acoustic inversion equation is basic in acoustic measurement of physical parameters of sediments. Two kinds of acoustic inversion models of physical parameters based on acoustic theory and statistical theory are studied. Acoustic and physical measurement values in seabed sediments of the South China Sea shelf are applied to testing and comparing the two models. By instancing the physical parameters of porosity and water content, the inversion model based on double-parameter empirical equation is well applicable but to be improved in inversion precision. The inversion model inferred by acoustic theory is maturating in inversing physical parameters of seabed sediments in the South China Sea.

关 键 词：海底沉积物 孔隙度 声波 声学 反演 

分 类 号：P736.211[天文地球—海洋地质] O422.4[天文地球—海洋科学]