A Method for Estimating Dominant Acoustic Backscatter Mechanism of Water-Seabed Interface via Relative Entropy Estimation
Joint Authors
Zou, Bo
Zhai, Jingsheng
Xu, Jian
Li, Zhaoxing
Gao, Sunpei
Source
Mathematical Problems in Engineering
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-12-02
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
It is important to distinguish the dominant mechanism of seabed acoustic scattering for the quantitative inversion of seabed parameters.
An identification scheme is proposed based on Bayesian inversion with the relative entropy used to estimate dominant acoustic backscatter mechanism.
DiffeRential Evolution Adaptive Metropolis is used to obtain samples from posterior probability density in Bayesian inversion.
Three mechanisms for seabed scattering are considered: scattering from a rough water-seabed interface, scattering from volume heterogeneities, and mixed scattering from both interface roughness and volume heterogeneities.
Roughness scattering and volume scattering are modelled based on Fluid Theories using Small-Slope Approximation and Small-Perturbation Fluid Approximation, respectively.
The identification scheme is applied to three simulated observation data sets.
The results indicate that the scheme is promising and appears capable of distinguishing sediment volume from interface roughness scattering and can correctly identify the dominant acoustic backscatter mechanism.
American Psychological Association (APA)
Zou, Bo& Zhai, Jingsheng& Xu, Jian& Li, Zhaoxing& Gao, Sunpei. 2018. A Method for Estimating Dominant Acoustic Backscatter Mechanism of Water-Seabed Interface via Relative Entropy Estimation. Mathematical Problems in Engineering،Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1207405
Modern Language Association (MLA)
Zou, Bo…[et al.]. A Method for Estimating Dominant Acoustic Backscatter Mechanism of Water-Seabed Interface via Relative Entropy Estimation. Mathematical Problems in Engineering No. 2018 (2018), pp.1-10.
https://search.emarefa.net/detail/BIM-1207405
American Medical Association (AMA)
Zou, Bo& Zhai, Jingsheng& Xu, Jian& Li, Zhaoxing& Gao, Sunpei. A Method for Estimating Dominant Acoustic Backscatter Mechanism of Water-Seabed Interface via Relative Entropy Estimation. Mathematical Problems in Engineering. 2018. Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1207405
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1207405