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In this paper recent results of passive SAR imaging using a Digital Video Broadcasting-Terrestrial (DVB-T) transmitter as an illuminator of opportunity are presented. In the experiment the passive radar receiver was mounted on an airborne platform. The main goal was to verify the possibility of ground imaging using passive SAR technology utilizing ground based illuminators of opportunity.
The airborne passive radar signal processing for moving target detections can be segregated into a two-step interference cancellation process where the random range sidelobes couplings of the direct path and of the strong clutter are to be first suppressed. Further cancellation of the residual sidelobes couplings and on the spatial-Doppler dependent clutter is then achieved using reduced-dimension...
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