NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Geometric accuracy in airborne SAR imagesUncorrected across-track motions of a synthetic aperture radar (SAR) platform can cause both a severe loss of azimuthal positioning accuracy in, and defocusing of, the resultant SAR image. It is shown how the results of an autofocus procedure can be incorporated in the azimuth processing to produce a fully focused image that is geometrically accurate in azimuth. Range positioning accuracy is also discussed, leading to a comprehensive treatment of all aspects of geometric accuracy. The system considered is an X-band SAR.
Document ID
19890052246
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Blacknell, D.
(GEC-Marconi Electronics Ltd. Chelmsford, United Kingdom)
Quegan, S.
(GEC-Marconi Electronics Ltd. Chelmsford, United Kingdom)
Ward, I. A.
(GEC Research, Ltd., Marconi Research Centre Great Baddow, United Kingdom)
Freeman, A.
(California Institute of Technology, Jet Propulsion Laboratory, Pasadena; GEC Research, Ltd., Marconi Research Centre Great Baddow, United Kingdom)
Finley, I. P.
(Royal Signals and Radar Establishment Malvern, United Kingdom)
Date Acquired
August 14, 2013
Publication Date
March 1, 1989
Publication Information
Publication: IEEE Transactions on Aerospace and Electronic Systems
Volume: 25
ISSN: 0018-9251
Subject Category
Communications And Radar
Accession Number
89A39617
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available