Communications: directive radio wave systems and devices (e.g. – Synthetic aperture radar
Reexamination Certificate
2007-03-27
2007-03-27
Gregory, Bernarr E. (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Synthetic aperture radar
C342S02500R, C342S02500R, C342S02500R, C342S073000, C342S074000, C342S075000, C342S081000, C342S082000, C342S165000, C342S173000, C342S175000, C342S176000, C342S179000, C342S189000, C342S195000, C342S196000
Reexamination Certificate
active
10502755
ABSTRACT:
An imaging apparatus has transmitter illuminating a selected surface with a radar beam footprint, and processor for profiling/processing the radar returns so as to derive attitude information in real time about a number of predefined axes associated with the radar which depends upon the relative dispositions of the radar, the selected surface and upon the radar beam footprint characteristics.A plurality of transmit beams image the surface and the processing arrangement has the capability of determining roll, pitch and/or yaw pointing data associated with the radar, such pointing data being determined by derivation of the attitude information and by selective input of terrain elevation data so as to take account of variations in the radar viewing geometry with terrain elevation.This provides a low cost advantage over known radar designs, and retains utility for many applications, for example spaceborne and airborne applications.
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Hall Charles David
Priestley David Martin
Astrium Limited
Nixon & Vanderhye P.C.
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