Spacecraft antenna pattern control system

Details Spacecraft antenna pattern control system Spacecraft antenna pattern control system

H - Electricity

01

Q

H01Q 3/02 (2006.01) H01Q 1/28 (2006.01) H01Q 3/26 (2006.01) H04B 7/185 (2006.01)

Patent

CA 2068136

A system for controlling a radiation pattern of an antenna array carried on a spacecraft, to provide and maintain a desired pattern over a preselected area remote from the spacecraft, without physical movement of the array with respect to the spacecraft even if the spacecraft is physically reoriented with respect to the remote earth area, uses sensors, carried on the spacecraft, for determining spacecraft reorientation relative to the preselected earth area, so as to provide at least one error signal responsive to any spacecraft reorientation; a phased-array antenna system, inertialessly reconfigures the array radiation pattern responsive to a set of directional pointing data; a loop provides the directional pointing data in a manner serving to minimize the error signals from the sensing means and thus cause the antenna radiation pattern to remain substantially fixed on the remote earth axes even if the spacecraft is reoriented.

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