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The information content of synthetic aperture radar images of terrainA statistical model is developed that portrays an imaging radar as a noisy communication channel with multiplicative noise, and the model is used to evaluate the average amount of information that can be extracted about a target from its radar image. The average information content is also used to define a measure of radiometric resolution for radar images. It is shown that the information content and the resolution capabilities of an imaging radar reach a limit beyond which an increase in scene dynamic range does not improve the information content or the resolution. This limitation results from the multiplicative nature of the noise introduced in the imaging process.
Document ID
19840033335
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Frost, V. S.
(Kansas Univ. Center for Research, Inc. Lawrence, KS, United States)
Shanmugan, K. S.
(University of Kansas Center for Research, Inc., Lawrence KS, United States)
Date Acquired
August 12, 2013
Publication Date
September 1, 1983
Publication Information
Publication: IEEE Transactions on Aerospace and Electronic Systems
Volume: AES-19
ISSN: 0018-9251
Subject Category
Earth Resources And Remote Sensing
Accession Number
84A16122
Funding Number(s)
CONTRACT_GRANT: NAG9-3
CONTRACT_GRANT: NAGW-381
CONTRACT_GRANT: NAS9-16664
Distribution Limits
Public
Copyright
Other

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