Patent ID: 8040273

Claim:
A mobile synthetic aperture radar comprising: a plurality of antenna elements that are arranged in a two-dimensional array and configured in or on a truck, the plurality of antenna elements operable to transmit a transmitted radio-frequency signal toward a building and receive a plurality of reflected radio-frequency signals comprising energy from the transmitted radio-frequency signal that is reflected from one or more internal features of the building, the plurality of antenna elements operable to step the transmitted radio-frequency signal through a range of frequencies extending from 500 to 1225 Mega-Hertz, at least a portion of the reflected radio-frequency signals received with a vertical aperture that differs from one another; and an image processing application coupled to the plurality of antenna elements and operable to: receive the reflected radio-frequency signals from the plurality of antenna elements as they are moved horizontally with respect to the building; and generate imagery of the building according to phase variations in the plurality of received radio-frequency signals relative to one another, the imagery depicting vertical characteristics of the one or more internal features comprising a ground floor and an upper floor of the building.