Spacecraft formation cooperative control method for guaranteeing communication and avoiding collision

Abstract

The invention discloses a spacecraft formation cooperative control method for guaranteeing communication and avoiding collision. The method comprises the following steps that: considering a situationthat external interference is in the presence to establish the relative position kinetic model of a spacecraft formation flight system; on the basis of a directed graph theory, describing the communication situation of the spacecraft formation flight system; defining a scalar potential function, and restricting a safe and reliable area capable of guaranteeing the effective communication and the collision avoidance of the spacecraft; and designing an adaptive cooperative controller to enable the final speed of the spacecraft formation to approach to be consistent. By use of the method, while the formation spacecraft realizes a consistent integral speed, the formation spacecraft is guaranteed to carry out effective communication and collision avoidance, and in addition, the method has the advantages of high anti-jamming capability, good robustness and the like, and is suitable for the cooperative control of the relative position of spacecraft formation flight.

Description

technical field [0001] The invention belongs to the technical field of spacecraft control, and in particular relates to a cooperative control method of a spacecraft formation that ensures communication and avoids collisions. aircraft formation flight system. Background technique [0002] Due to the advantages of relatively low cost, strong system robustness, high operational reliability and fast mission response, spacecraft formation flight is playing an increasingly important role in the modern aerospace field. When performing space missions, wireless communication can be used between the formation spacecraft in the spacecraft formation flight system to obtain the state information of adjacent spacecraft, and combine its own state information to build a controller to realize the entire spacecraft formation flight system. collaborative control. [0003] However, when the distances between the spacecraft in each formation are relatively far away, the communication is often ...

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Problems solved by technology

[0003] However, when the distances between the formation spacecraft are relatively far away, communication is often interrupted

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