Real-time geoacoustic inversion of broad band signals in deep water

SHORT ABSTRACT: This paper describes the development of a real time geoacoustic inversion tool devoted to broad band signals. The aim of this tool is to automatically infer geoacoustic bottom characteristics from transmission sound field pressure measurements in a deep ocean medium. The first part of the article is devoted to the direct problem. It describes the functionalities of the real time propagation simulation tool and its automatic connection with measurements parameters. Then the paper deals with an inversion method based on recent works on the subject in the scientific community. Finally real-time architecture and some concrete results obtained with in-situ data in the gulf of Oman are presented.