SYSTEM OF CONTROLLING THE ATTITUDE OF A SPINNING SATELLITE IN EARTH ORBITS

摘要

A system of controlling the attitude of a spinning satellite by controlling a satellite-borne magnetic control element according to a switching function S defined by S = E.(kB x B) where E = H - Hf (H; instantaneous attitude of a spinning satellite; Hf; desired attitude of the spinning satellite) KB; spin axis of the spinning satellite B; earth's magnetic field at the instantaneous position of the spinning satellite WHEREIN SAID MAGNETIC CONTROL ELEMENT IS CONTROLLED BY A PATTERN WEIGHTED NEAR THE MIDDLE BETWEEN THE TWO ADJOINING SWITCHING POINTS OF THE SWITCHING FUNCTION S.