SCSIO OpenIR  > 中科院边缘海地质重点实验室
Two-Step Inversion of Geoacoustic Parameters with Bottom Reverberation and Transmission Loss in the Deep Ocean
Yang, KD; Xu, LY; Yang, QL; Li, GX; ykdzym@nwpu.edu.cn
2018
Source PublicationACOUSTICS AUSTRALIA
Volume46Issue:1Pages:131-142
AbstractThe parameters of deep ocean sediments are relevant for accurately predicting the sound field; however, it is difficult to measure the parameters in situ. Most inversion methods used in shallow water are inapplicable in the deep ocean because of the considerable differences in propagation characteristics. At present, no method for simultaneously obtaining sound speed, density, and attenuation that considers the sensitivity of sediment parameters is yet available. This study proposes a two-step inversion of geoacoustic parameters in the deep ocean. On the basis of the half-space model, the decline tendency of bottom reverberation level with travel time is used for the inversion of sound speed and density, whereas transmission loss is used for inversion of attenuation. Inversion results can be practical for acoustic applications when this method is used. Experimental data from the South China Sea in the summer of 2014 are processed during the inversion process. The sediment parameters obtained from the inversion process are close to the laboratory-measured sampling values and may be used to predict the sound field in various applications, such as in transmission loss in the deep ocean.
Department[Yang, Kunde; Xu, Liya; Yang, Qiulong] Northwestern Polytech Univ, Sch Marine Sci & Technol, Xian 710072, Shaanxi, Peoples R China; [Yang, Kunde; Xu, Liya; Yang, Qiulong] Northwestern Polytech Univ, Key Lab Ocean Acoust & Sensing, Minist Ind & Informat Technol, Xian 710072, Shaanxi, Peoples R China; [Li, Ganxian] South China Sea Inst Oceanol, CAS Key Lab Ocean & Marginal Sea Geol, Guangzhou 510301, Guangdong, Peoples R China
Subject AreaAcoustics
WOS KeywordBottom reverberation ; Transmission loss ; Inversion ; Deep ocean
Funding ProjectMSG
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/17141
Collection中科院边缘海地质重点实验室
Corresponding Authorykdzym@nwpu.edu.cn
Recommended Citation
GB/T 7714
Yang, KD,Xu, LY,Yang, QL,et al. Two-Step Inversion of Geoacoustic Parameters with Bottom Reverberation and Transmission Loss in the Deep Ocean[J]. ACOUSTICS AUSTRALIA,2018,46(1):131-142.
APA Yang, KD,Xu, LY,Yang, QL,Li, GX,&ykdzym@nwpu.edu.cn.(2018).Two-Step Inversion of Geoacoustic Parameters with Bottom Reverberation and Transmission Loss in the Deep Ocean.ACOUSTICS AUSTRALIA,46(1),131-142.
MLA Yang, KD,et al."Two-Step Inversion of Geoacoustic Parameters with Bottom Reverberation and Transmission Loss in the Deep Ocean".ACOUSTICS AUSTRALIA 46.1(2018):131-142.
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