Tau theory-based spacecraft rendezvous guidance method

Abstract

The present invention discloses a Tau theory-based spacecraft rendezvous guidance method. The Tau theory-based spacecraft rendezvous guidance method is provided according to material and energy transfer tasks between orbit spacecrafts. With the Tau theory-based spacecraft rendezvous guidance method adopted, a suitable rendezvous trajectory can be designed. According to the method of the invention, a relative motion model in a near-distance rendezvous process is analyzed; the expression form of the rendezvous trajectory is given based on the Tau theory; derivation is performed through using the rendezvous trajectory, so that a speed required in the rendezvous process is obtained; and an accelerated speed required in the rendezvous process is solved through using an inverse dynamics method on the basis of the speed required in the rendezvous process. The method provided by the invention is a bionic method; the instinctive movement of animals in the nature, which has been continuously optimized through thousands of years, is concluded and summarized, and therefore, the method has certain optimality; and the rendezvous trajectory designed by using the method can not only satisfy rendezvous requirements, but also has excellent adaptability.

Description

technical field [0001] The invention belongs to the field of aerospace dynamics, and in particular relates to a rendezvous guidance method for spacecraft based on Tau theory. Background technique [0002] In just a few decades since the beginning of space exploration activities, humans have sent thousands of artificial satellites into space for a variety of space missions. Judging from previous development trends, the 21st century will be a century in which mankind has made major breakthroughs and achieved rapid development in the space field. In this situation, the development and utilization of space resources is increasingly inseparable from the round-trip capability of space and earth materials and personnel, and the transfer of matter and energy between spacecraft. The above-mentioned activities are closely dependent on the development of a key technology --- rendezvous and docking technology, which has become an important part of ensuring the national space technology...

AI Technical Summary

Problems solved by technology

Although these methods can design a rendezvous trajectory that meets the requirements, they generally have the problem of large amount of calculation, which is not suitable for real-time online calculation.

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