Interferometric synthetic aperture sonar for high resolution 3-D mapping of the seabed

Author

Griffiths, H.D. ; Rafik, T.A. ; Meng, Z. ; Cowan, C.F.N. ; Shafeeu, H. ; Anthony, D.K.

Author_Institution

Dept. of Electron. & Electr. Eng., Univ. Coll. London, UK

Volume

144

Issue

2

fYear

1997

fDate

4/1/1997 12:00:00 AM

Firstpage

96

Lastpage

103

Abstract

A technique is described and demonstrated for generating high-resolution 3-D images of the objects on the seabed, combining synthetic aperture sonar with bathymetric (interferometric) processing. This has applications in surveying of oil wells, pipelines and shipwrecks, and in defence in mine hunting. It is shown that the technique is very sensitive to platform motion errors, and ways are discussed by which the errors may be estimated and compensated. Practical results obtained with an experimental system in a test tank are presented and discussed, and a number of areas for further work are identified

Keywords

acoustic wave interferometry; error analysis; image resolution; marine systems; motion compensation; sonar imaging; bathymetric processing; high resolution 3-D mapping; high-resolution 3-D images; interferometric processing; interferometric synthetic aperture sonar; mine hunting; oil wells; pipelines; platform motion errors; seabed; shipwrecks; surveying;

fLanguage

English

Journal_Title

Radar, Sonar and Navigation, IEE Proceedings -

Publisher

iet

ISSN

1350-2395

Type

jour

DOI

10.1049/ip-rsn:19971076

Filename

591270