초록

Spacecraft attitude is efficiently controlled by utilizing spatial noise and temporal noise in the calculation of gains to a Kalman filter. Spatial noise is modeled in a dynamic fashion so as to provide optimal spatial noise attenuation.

대표청구항 ▼

[ We claim:] [1.] A method to control the attitude of a spacecraft which carries an onboard star tracker that is subject to a spatially dependent error that varies with the spacecraft's spatial conditions, comprising:providing a model of spatially dependent error associated with said star tracker,dy

[ We claim:] [1.] A method to control the attitude of a spacecraft which carries an onboard star tracker that is subject to a spatially dependent error that varies with the spacecraft's spatial conditions, comprising:providing a model of spatially dependent error associated with said star tracker,dynamically sensing spacecraft spatial conditions while in flight to dynamically determine said spatially dependent error,dynamically adjusting said error model based upon said dynamically determined spatially dependent error, anddynamically controlling the spacecraft attitude based upon said dynamically adjusted error model.