Extensions to the Step Transform SAR Processing Technique
- 1 May 1985
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Aerospace and Electronic Systems
- Vol. AES-21 (3) , 338-344
- https://doi.org/10.1109/TAES.1985.310563
Abstract
In previous descriptions of the step transform SAR azimuth compression algorithm, it has been assumed that the azimuth signal is linear FM and is strictly confined within a single range cell. These conditions do not always hold. Under stringent imaging conditions range curvature occurs, i.e., a nonlinear range migration of the energy associated with a point target takes place. If the system must also operate at a high squint angle, the azimuth signal becomes nonlinear FM. This paper describes extensions to the basic step transform algorithm that allow these imaging situations to be accommodated.Keywords
This publication has 2 references indexed in Scilit:
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