In this paper we present a method for imaging ground moving targets using passive synthetic aperture radar.
A passive radar imaging system uses small, mobile receivers that do not radiate any energy. For these reasons,
passive imaging systems result in signicant cost, manufacturing, and stealth advantages. The received signals are
obtained by multiple airborne receivers collecting scattered waves due to illuminating sources of opportunity such
as commercial television, radio, and cell phone towers. We describe a novel forward model and a corresponding
ltered-backprojection type image reconstruction method combined with entropy optimization. Our method
determines the location and velocity of multiple targets moving at dierent velocities. Furthermore, it can
accommodate arbitrary imaging geometries. we present numerical simulations to verify the imaging method.
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