Title :
3B-6 Motion Compensation on Synthetic Aperture Sonar Images
Author :
Heremans, Roel ; Acheroy, Marc ; Dupont, Yves
Author_Institution :
R. Mil. Acad., Brussels
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;
Conference_Titel :
Ultrasonics Symposium, 2006. IEEE
Conference_Location :
Vancouver, BC
Print_ISBN :
1-4244-0201-8
Electronic_ISBN :
1051-0117
DOI :
10.1109/ULTSYM.2006.51
