Tau theory-based spacecraft rendezvous guidance method

A technology for rendezvous guidance and spacecraft, applied in the field of aerospace dynamics, can solve problems such as large amount of calculation, unsuitable for real-time online calculation, etc., to achieve the effect of strong environmental adaptability and reducing computational burden

Active Publication Date: 2017-09-15
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology

Although these methods can design a rendezvous trajectory that meets the requirements, they generall...

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  • Tau theory-based spacecraft rendezvous guidance method
  • Tau theory-based spacecraft rendezvous guidance method
  • Tau theory-based spacecraft rendezvous guidance method

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Embodiment Construction

[0040] Tau theory is a bionic theory, which is the induction and summary of the instinctive movement formed by birds and other animals in nature through thousands of years of natural evolution and continuous optimization. The present invention provides a Tau theory-based The spacecraft rendezvous guidance method, aiming at the material and energy transfer tasks between spacecraft in orbit, applies the research results of Tau theory to the process of spacecraft rendezvous in orbit, uses the results of bionics to design a suitable rendezvous trajectory, and Ensure that the trajectory has a certain degree of optimality and adaptability.

[0041] see figure 1 , the concrete steps of a kind of spacecraft rendezvous guidance method based on Tau theory of the present invention are as follows:

[0042] S1. Establish the relative dynamic equation in the close-range rendezvous process, and then introduce the Tau theory to design the rendezvous trajectory during the close-range rendezvo...

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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...

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Application Information

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IPC IPC(8): G05B13/04
CPCG05B13/042
Inventor 袁建平李琪朱战霞袁源孙冲
Owner NORTHWESTERN POLYTECHNICAL UNIV
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