The polar format algorithm (PFA) for spotlight synthetic aperture radar (SAR) is based on a linear approximation for the differential range to a scatterer. We derive a second-order Taylor series approximation of the differential range. We provide a simple and concise derivation of both the far-field linear approximation of the differential range, which forms the basis of the PFA, and the corresponding approximation limits based on the second-order terms of the approximation.
Taylor expansion of the differential range for monostatic SAR
IEEE Transactions on Aerospace and Electronic Systems ; 41 , 1 ; 60-64
2005-01-01
563217 byte
Article (Journal)
Electronic Resource
English
Taylor Expansion of the Differential Range for Monostatic SAR
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