Patent ID: 6861978

Claim:
A system for imaging a target, the system comprising: a first antenna configured to receive from an imaging target a first signal occupying a first bandwidth including substantially more than one frequency; a second antenna configured to receive from the imaging target a second signal occupying a second bandwidth including substantially more than one frequency and to perform a spatial movement relative to the first antenna, the spatial movement being associated with a synthetic aperture; a cross correlation receiver coupled to the first antenna and the second antenna, the cross correlation receiver configured to: process information associated with the first signal and the second signal; determine a cross correlation function based on at least information associated with the first signal and the second signal; wherein the cross correlation function is dependent upon at least a time interval between a first time when the first antenna receiving the first signal and a second time when the second antenna receiving the second signal; wherein the cross correlation function is associated with the synthetic aperture; a processing system coupled to the cross correlation receiver and configured to: determine a radial down range profile of the imaging target based on at least information associated with the cross correlation function; perform a phase compensation to the radial down range profile; form an image of the imaging target based on at least information associated with the phase-compensated radial down range profile; wherein the form an image of the imaging target uses at least an synthetic aperture imaging algorithm.