DocumentCode :
2122028
Title :
Matched field tomographic inversion
Author :
Tolstoy, A.
Author_Institution :
Naval Res. Lab., Washington, DC, USA
fYear :
1993
fDate :
18-21 Oct 1993
Abstract :
Matched field processing (MFP) is a signal processing technique that has only recently been applied to the environmental inverse problem, i.e., to determine the characteristics of an unknown ocean environment. In particular, a 3D tomographic approach has been previously proposed and studied which promises to determine deep water sound-speed profiles as they vary with range, cross-range, and depth. This technique in its most efficient form suggests shot sources (either air or ship deployed) and either multiple vertical arrays, multiple horizontal arrays, or a single array re-deployed several times. This paper discusses work which extends those results to more complicated simulated environments, and also a further generalization of the approach to determine 3D bottom parameters, e.g., sediment sound-speeds and thicknesses
Keywords :
geophysics computing; inverse problems; oceanographic techniques; underwater sound; acoustic method; cross-range; geophysical tomography; inverse problem; matched field processing; matched field tomographic inversion; measurement technique; ocean sea underwater sound; seafloor; sediment; sound speed profile; three dimensional; Acoustic arrays; Acoustic measurements; Acoustic propagation; Frequency; Marine vehicles; Oceans; Phased arrays; Predictive models; Sediments; Tomography;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
OCEANS '93. Engineering in Harmony with Ocean. Proceedings
Conference_Location :
Victoria, BC
Print_ISBN :
0-7803-1385-2
Type :
conf
DOI :
10.1109/OCEANS.1993.326216
Filename :
326216
Link To Document :
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