Measurement of perturbation forces on attitude of orbiting satellite

摘要

The satellite attitude is controlled by compensating (74) perturbation forces (80) and random noise (82). Attitude detectors (64) deliver filtered (68) attitude measures, and perturbation measures are filtered (66) to produce a combined signal to actuate compensation and provide a signal (76) that selects the appropriate gain matrix for the estimation process. The compensator produces a magnetic field that interacts with the earth's field to alter attitude.