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Engineering

Research project: Detection and identification of difficult maritime targets

Currently Active: 
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The detection and identification of small, low target strength objects in difficult maritime environments remains an issue for underwater security.  Many current initiatives approach this problem by attempting to form the best quality image of the target using higher frequency sound.  This project is investigating alternative characteristics of the acoustic scattering from targets that may help to aid in this process.    

Project Overview

A range of numerical modelling techniques and experimental measurements have been used to study the acoustic scattering properties of a range of acoustic targets. The work has concentrated on studying the extra information that can be obtained by observing the scattering characteristics over a very wide range of frequencies; in the laboratory scale model experiments using a parametric source have produced information over more than a decade in frequency. These results have been complemented by full scale experimental measurements at the NPL Wraysbury facility. The laboratory studies are also investigating the application of tomographic techniques to the inversion of scattering data.

Related research groups

Acoustics Group

Staff

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