A Pulse Threshold Orbit Control Method for Inner Formation Satellite
A pulse threshold relative orbit control method is proposed to address the issue of maintaining the formation configuration of inner formation satellite in case of collision due to the perturbation difference be-tween internal and external satellite.A periodic-start pulse threshold controller is designed,and the applied pulse impulse is calculated based on the relative position and threshold of the inner and outer satellite cen-troids as well as the linearized relative orbital motion dynamics model.The Monte Carlo method is used to simulate the state estimation bias of the inner and outer satellite,which is compared with two continuous control methods under the same conditions.The results show that a good balance can be achieved by using this method regarding control accuracy,fuel consumption,and the inffluence of measurement error,which can effectively reduce the uncertainty caused by state deviation on fuel consumption and can be applied to the maintenance of formation configurations of inner formation satellite with low fuel consumption in orbit for a long time.The proposed method can also be applied to the maintenance of general formation satellite config-urations and planetary companion flights.
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