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Inverting a dispersive scene's side-scanned imageConsideration is given to the problem of using a remotely sensed, side-scanned image of a time-variant scene, which changes according to a dispersion relation, to estimate the structure at a given moment. Additive thermal noise is neglected in the models considered in the formal treatment. It is shown that the dispersion relation is normalized by the scanning velocity, as is the group scanning velocity component. An inversion operation is defined for noise-free images generated by SAR. The method is extended to the inversion of noisy imagery, and a formulation is defined for spectral density estimation. Finally, the methods for a radar system are used for the case of sonar.
Document ID
19830039152
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Harger, R. O.
(Maryland, University College Park, MD, United States)
Date Acquired
August 11, 2013
Publication Date
February 1, 1983
Publication Information
Publication: Radio Science
Volume: 18
Subject Category
Communications And Radar
Accession Number
83A20370
Funding Number(s)
CONTRACT_GRANT: N00014-76-C-1048
CONTRACT_GRANT: N00014-81-C-0692
Distribution Limits
Public
Copyright
Other

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