Synthetic aperture sonar processing for the HUGIN AUV

Author

Hansen, R.E. ; Sæbø, Torstein Olsmo ; Callow, Hayden John ; Hagen, P.E. ; Hammerstad, Erik

Author_Institution

Norwegian Defence Res. Establ., Kjeller, Norway

Volume

2

fYear

2005

fDate

20-23 June 2005

Firstpage

1090

Abstract

The Norwegian Defence Research Establishment (FFI) and Kongsberg Maritime AS have an ongoing program to develop synthetic aperture sonar (SAS) technology for the HUGIN autonomous underwater vehicle (AUV). This includes the development of a high-resolution multi-aspect interferometric SAS, named SENSOTEK, which has been installed on HUGIN I. During this project, FFI has developed a full suite of software for postprocessing of SAS data, named "FOCUS Synthetic Aperture Sonar Signal Processing Toolbox". The toolbox includes integrated DPCA and INS navigation, beamforming both in time and wavenumber domain, autofocusing by map drift and contrast optimization, and seafloor height estimation by cross correlation techniques and interferometry.

Keywords

geophysical signal processing; remotely operated vehicles; sonar signal processing; synthetic aperture sonar; underwater vehicles; FOCUS Synthetic Aperture Sonar Signal Processing Toolbox; HUGIN AUV; HUGIN I; Kongsberg Maritime AS; Norwegian Defence Research Establishment; SENSOTEK; autonomous underwater vehicle; beamforming; contrast optimization; cross correlation techniques; integrated DPCA navigation; integrated INS navigation; interferometric SAS; interferometry; map drift; seafloor height estimation; synthetic aperture sonar processing; time domain; wavenumber domain; Focusing; Graphical user interfaces; Mobile robots; Motion estimation; Remotely operated vehicles; Sensor arrays; Signal processing; Software tools; Spatial resolution; Synthetic aperture sonar;

fLanguage

English

Publisher

ieee

Conference_Titel

Oceans 2005 - Europe

Conference_Location

Brest, France

Print_ISBN

0-7803-9103-9

Type

conf

DOI

10.1109/OCEANSE.2005.1513210

Filename

1513210