Space non-cooperative target acquisition system and acquisition method based on micro-nano satellite cluster

Abstract

The invention discloses a space non-cooperative target acquisition system and acquisition method based on a cluster of micro-nano satellites. The acquisition system includes a parent star, a star subgroup and a worker star subgroup; the parent star is used to carry, release and recover the star star subgroup and the worker star subgroup group, and perform data fusion and calculation based on the measurement information of the visual satellite subgroup, command and dispatch the subgroup of worker satellites to approach, attach and take over space non-cooperative targets according to the data fusion and calculation results; worker satellites are used to coordinate orbits and attitudes between satellites The attachable surface attached to the space non-cooperative target is achieved by means of control; the visual star is used to obtain the overall or partial image of the space non-cooperative target, the relative pose relationship between the worker star and the space non-cooperative target, and the visual star itself The position and orientation relationship of the parent star in space, and the acquired information is sent to the parent star through inter-satellite wireless communication. The capture system can be adapted for many different capture tasks.

Description

technical field [0001] The invention relates to the field of aerospace technology, in particular to a space non-cooperative target acquisition system and acquisition method based on micro-nano satellite clusters. Background technique [0002] At present, there are more than 19,000 trackable man-made objects flying around the earth, of which there are only more than 2,000 spacecraft in normal operation. non-cooperative target. Due to the loss of control, the non-cooperative target in space is in a state of attitude roll on the orbit, and its orbit changes randomly with the action of space complex perturbation force. On the one hand, non-cooperative space targets will occupy space orbital resources, making the newly launched spacecraft have no suitable orbit selection; on the other hand, it may also collide with normal spacecraft, thus bringing potential safety hazards to the operation of the latter. Therefore, how to capture non-cooperative targets in space and transfer the...

AI Technical Summary

Problems solved by technology

However, these methods have many shortcomings, which make their practical application in orbit difficult.

For example, when the space flying net is capturing the target, it is easy to cause the failure of the flying net to expand due to the nonlinearity, kinks and entanglements of the rope net structure; Cooperative target; when the space manipulator captures the target, it is easy to cause the target and the body to collide due to insufficient torque of the manipulator, resulting in mission failure

In addition, programs such as space flying nets and space harpoons can only be used once, which leads to high costs for capturing non-cooperative targets in space

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