Target Acquisition Control for Spacecraft Gimballed Payload.

摘要

A method and apparatus for controlling a gimballed platform.The method comprises the steps of computing an acquisition phase gimbal angle rate command omega(sub cmd)(sub --)(sub Acq) from a measured LOS angle error DELTA theta(sub LOS) for an initial control period T while computing an estimated LOS angle rate (circumflex over (omega))(sub LOS), computing a tracking phase gimbal angle rate command omega(sub cmd)(sub --)(sub Trk) using a controller having an output initialized with the estimated LOS angle rate (circumflex over (omega))(sub LOS), and commanding the gimballed platform according to an angle rate command .omega..sub.cmd, wherein the angle rate command omega(sub cmd) is the acquisition phase angle rate command omega(sub cmd)(sub --)(sub Acq) during the initial control period T and the tracking phase gimbal angle rate command omega(sub cmd)(sub --)(sub Trk) after the initial control period T.