摘要: The inner-formation gravity field measurement satellite system is a novel conceptand can finish the high precision gravity field measurement. The inner-formation system is composed of the outer satellite and the inner satellitewhi... 展开 The inner-formation gravity field measurement satellite system is a novel conceptand can finish the high precision gravity field measurement. The inner-formation system is composed of the outer satellite and the inner satellitewhich shielded in the cavity center of the outer satellite and without connectionwith the outer satellite. And the control of the inner-formation system can treatas a formation of zero size using the inner satellite as reference. In order to finishthe in-orbit, real time control of the inner-formation system and satisfy theperformance requirements of gravity field measurement in low orbit, the controlsystem of the inner-formation system need provide precision control.Through compensating most of air drag, the precision control system can reducethe disturbance of the feedback controller. The paper proposed a hybridcontrol scheme includes feed forward and feedback control, then the nonlinearmodel predictive control method with disturbance compensation is also proposedwhich the disturbance estimation method is unscented Kalman filter. Theprecision control system can finish the integrate control of attitude and orbitfor the inner-formation gravity field measurement satellite system with limitedinputs, and the maintenance accuracy of the relative position is not surpass0.05cm, the attitude stabilization control accuracy is better than 0.03°, whichmeet the strong constraints of the relatively position and high attitude stabilizationrequired by the gravity field measurement mission. The precision controlsystem designed for inner-formation system can ensure that the influencecaused by different disturbances is controlled in 10~(-11)g level. 收起