Analog apparatus for determining the attitude errors of a three-axis stabilized satellite

摘要

An apparatus to be used with a horizon sensor comprising an oscillating mirror and a plurality of bolometers on board a three-axis stabilized satellite. Means are provided to derive signals from the radiance signals produced by the bolometers and other means use said derived signals to sample the deviation signal representing the direction deviation of the optical axis of said mirror in order to produce the attitude error signals.