Autonomous orbit control method for stationary orbit satellite

Abstract

The invention relates to an autonomous orbit control method for a stationary orbit satellite, belonging to the technical field of autonomous orbit control of the satellite. The autonomous orbit control method can be applied to a long-term operation management task of the stationary orbit satellite. After the satellite goes beyond a specified error box in east-west direction or south-north direction, corresponding autonomous orbit maintenance is required to be performed; and meanwhile, by considering the regularity for drift of the satellite along a stationary orbit and error of an autonomous navigation result, the effectiveness of control quantity and the rationality of time interval between every two control processes are required to be judged at each time when the orbit control quantity of the autonomous orbit, i.e., control impulses in the south-north direction and the east-west direction which are delta VNS and delta VEW respectively, are calculated. The method has been successfully applied to china satellites; a remote sensing result shows that the autonomous control strategy of the satellite is correct; and the method can be widely applied to all geostationary orbit satellites required to have the autonomous function.

Description

technical field [0001] The invention relates to a method for controlling the autonomous orbit of a geostationary orbit satellite, which belongs to the technical field of satellite autonomous orbit control and can be applied to the long-term operation management task of the geostationary orbit satellite. Background technique [0002] Satellite autonomous orbit control belongs to the research work being carried out by spaceflight countries. It belongs to the guidance and control part of spacecraft navigation, guidance and control. From the information published now, there is a class of satellites with approximate autonomous orbit control, such as Although the U.S. Deep Space Exploration Satellite No. 1 can use Remote Agent for autonomous operation and management, the orbit control needs to be carried out according to the plan, mainly in terms of guidance, which is still based on ground planning, so the truly complete autonomous orbit control, especially for spaceflight There a...

AI Technical Summary

Problems solved by technology

[0010] None of the satellites currently in orbit in my country have autonomous control capabilities, but requirements for autonomous control capabilities have been put forward. For example, in the case of losing ground station support, the attitude and position control systems of geostationary communication satellites are required to work normally within 180 days. To ensure that the communication satellite system meets the communication requirements in various situations, this not only requires satellite autonomous navigation, but also poses new challenges to satellite autonomous long-term orbit maintenance technology

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