Abstract

In any earth orbiting system designed for the sensing of inputs from remote sources, it is of prime importance to identify the location of the remote source. This implies a priori knowledge of the pointing direction of the instrument. In some applications, at the time of input sensing, accuracy must be within a few seconds of arc. Real-time sensing of perturbations to pointing of an instrument in orbit may be needed for attitude determination or control. These perturbations may occur over a large bandwidth.

© 1985 Optical Society of America