High Resolution Spectral Methods in SAR and ISAR Processing
By Fred J. Harris
Abstract:
We show that by proper perspective the polar format processing for high resolution radar imaging can be viewed as the spectral description of the focusing required for standard range and cross-range processing. Alternatively we can show that range and cross-range processing is simply a first order approximation to polar format processing. In this light we also demonstrate a number of simple to implement (focusing) transformations to effect partial polar mapping and thus obtain imaging performance between that of the two imaging techniques.
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