A Method for Accurate Detection of Orbit Transfer of Small Low-Energy Objects Under Complex Constraints

Abstract

The invention discloses a method for precise detection and orbit transfer of low-energy small celestial bodies under complex constraints, which belongs to the field of aerospace technology. The present invention firstly determines the multiple complex non-uniform strong coupling constraints that must be satisfied by the detection track design task, and establishes the mapping relationship between the multiple complex non-uniform strong coupling constraints and the track design parameters; establishes the dynamic equation of the detector under the centroid rotating coordinate system ; The initial value is provided by the established linearized detector dynamic equation, and the accurate quasi-periodic orbit under the ephemeris model is obtained by using the nonlinear dimensionality reduction method and the second-order differential correction; based on the accurate quasi-periodic orbit under the ephemeris model, the The initial value of the transfer orbit is obtained by optimization of the manifold perturbation method; the initial value of the transfer orbit is corrected according to a variety of complex non-uniform strong coupling constraints, and an accurate low-energy transfer orbit is obtained. The invention has the advantages of high efficiency, good convergence and less energy required for transfer.

Description

technical field [0001] The invention relates to a method for precise detection and orbit transfer of low-energy small celestial bodies under complex constraints, in particular to a method for realizing low-energy transfer orbits of small celestial bodies that is suitable for considering fuel constraints, measurement and control constraints, and flight maneuvering state constraints, and belongs to the field of aerospace technology . Background technique [0002] The minerals rich in small celestial bodies can become an important source of human mining, and the organic matter contained in them will also provide direct information and insights into the origin of life. Therefore, the detection of small celestial bodies has achieved varying degrees of progress in the deep space exploration missions of many aerospace powers, and has become a new direction for the future development of the world's spaceflight. [0003] Prior art in the developed orbit design method for asteroid ex...

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Problems solved by technology

[0004] The technical problem to be solved by the orbit transfer method for accurate detection of low-energy small celestial bodies under complex constraints disclosed by the present invention is to realize the precise detection orbit of multi-constrained low-energy small celestial bodies on the premise of satisfying multiple complex non-uniform strong coupling constraints Transfer, with the advantages of high efficiency, good convergence, and less energy required for transfer

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