3B-6 Motion Compensation on Synthetic Aperture Sonar Images

Author

Heremans, Roel ; Acheroy, Marc ; Dupont, Yves

Author_Institution

R. Mil. Acad., Brussels

fYear

2006

fDate

2-6 Oct. 2006

Firstpage

152

Lastpage

155

Abstract

The problem of horizontal displacement errors or sway errors in the tow-path of the synthetic aperture sonar (SAS) platform has a devastating effect on the quality of the reconstructed image if they are left uncorrected. The Displaced Phase Center Array algorithm is the most effective of the micro-navigation algorithms developed to date to obtain these path errors, which exploits in a unique way the spatial and temporal coherence properties of the sea-floor backscatter. This DPCA algorithm is described bellow in detail as well as the way how to compensate for this motion

Keywords

backscatter; echo; image reconstruction; motion compensation; navigation; oceanographic techniques; sonar imaging; synthetic aperture sonar; DPCA algorithm; Displaced Phase Center Array algorithm; SAS platform; horizontal displacement errors; micronavigation algorithms; motion compensation; reconstructed image; seafloor backscatter; spatial coherence; sway errors; synthetic aperture sonar images; temporal coherence; tow-path; Backscatter; Bellows; Image reconstruction; Layout; Motion compensation; Motion estimation; Phased arrays; Spatial resolution; Synthetic aperture radar; Synthetic aperture sonar;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 2006. IEEE

Conference_Location

Vancouver, BC

ISSN

1051-0117

Print_ISBN

1-4244-0201-8

Electronic_ISBN

1051-0117

Type

conf

DOI

10.1109/ULTSYM.2006.51

Filename

4151907