Title

Multistep matched-field inversion for broad-band data from ASIAEX2001

Document Type

Article

Date of Original Version

10-1-2004

Abstract

This paper discusses the results of geoacoustic inversion carried out using explosive charge data from the Asian Seas International Acoustic Experiment (ASIAEX) East China Sea (ECS) Experiment. A multifrequency incoherent matched-field inversion processor and a genetic algorithm (GA) are used for the inversion. A multistep matched field inversion approach is presented, which makes use of the varying sensitivities of wave fields at various frequencies to reduce the inversion problem into a sequence of smaller inversions with fewer unknowns to estimate at each stage. Different parameters are estimated using data at different frequencies according to their sensitivities. Inversion results for different areas in the ECS region are summarized and compared with core data. © 2004 IEEE.

Publication Title

IEEE Journal of Oceanic Engineering

Volume

29

Issue

4

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