Autofocusing a synthetic aperture sonar using the temporal and spatial coherence of seafloor reverberation

dc.contributor.author	Pinto, Marc A.
dc.contributor.author	Fohanno, F.
dc.contributor.author	Tremois, O.
dc.contributor.author	Guyonic, S.
dc.date.accessioned	2018-10-11T14:08:20Z
dc.date.available	2018-10-11T14:08:20Z
dc.date.issued	1997
dc.identifier	11495
dc.identifier.govdoc	CP-45
dc.identifier.uri	http://hdl.handle.net/20.500.12489/453
dc.description.abstract	An autofocusing algorithm for the compensation of translational motion errors of a sea floor rmaging synthetic aperture side scan sonar is presented. The algorithm does not depend on the presence or absence of dominant scatterers in the field of view and is based on the displaced phase center antenna concept. The theoretical performances are studied and the algorithm is shown to perform satisfactorily on stmulated data. Preliminary results obtained for a sonar moving on an underwater rail are presented. Sea trials are planned to validate an extension of the algorithm, termed "multibeam interferometry", to arbitrary motion errors.
dc.format	8 p. : ill. ; digital, PDF file
dc.language	English
dc.publisher	NATO. SACLANTCEN
dc.source	In: High Frequency Seafloor Acoustics (SACLANTCEN Conference Proceedings CP-45), 1997, pp. 417-424
dc.subject	Synthetic Aperture Sonar (SAS)
dc.subject	Seafloor reverberation
dc.subject	Algorithms
dc.subject	Sonar images
dc.subject	Image processing
dc.title	Autofocusing a synthetic aperture sonar using the temporal and spatial coherence of seafloor reverberation
dc.type	Papers and Articles
dc.type	Conference Proceedings (CP)