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Technical Examples
Described herein are frequency-domain back-projection processes for forming spotlight synthetic aperture radar ("SAR") images that are not corrupted by the effects of multiple-bounce ghosting artifacts. These processes give an approximately exact reconstruction of the multiple bounce reflectivity function (MBRF) f(x,y,?). Specifically, the evaluation of f(x,y,?) in they ?=0 plane gives an approximately exact reconstruction of the true object scattering centers which is uncorrupted by multiple-bounce contributions to the phase history data G(?, ?). In addition, the non-zero dependence of f(x,y,?) upon the MB coordinate ? can be used to facilitate the identification of features-interest within the imaged region.