| 摘要 |
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,gamma). Specifically, the evaluation of f(x,y,gamma) in the gamma=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(xi,theta). In addition, the non-zero dependence of f(x,y,gamma) upon the MB coordinate gamma can be used to facilitate the identification of features-interest within the imaged region.
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