A distributed aerodynamic fusion orbit coupling attitude perturbation analysis method

Abstract

The invention discloses a distributed aerodynamic fusion orbit coupling attitude perturbation analysis method, which relates to the field of spacecraft flight research. pose motion, and establish the perturbation analysis equation of the coupled attitude of the aerodynamic fusion orbit based on the attitude dynamics equation and the perturbation analysis model of the orbital number of the orbital flight; obtain the multi-source data of the spacecraft in-orbit flight process, the multi-source data includes: The position information of the spacecraft, the speed information of the spacecraft, the attitude information of the spacecraft and the sailboard information of the spacecraft are processed by using the perturbation analysis equation of the aerodynamic fusion orbit coupling attitude to process the multi-source data to obtain the tracking results of the spacecraft state. The parameter identification of the solar panel angle of the spacecraft is carried out to obtain the identification results; the error factors of the identification results are quantitatively analyzed, which improves the calculation accuracy of the spacecraft on-orbit flight and re-entry prediction.

Description

technical field [0001] The invention relates to the field of spacecraft flight research, in particular to a distributed aerodynamic fusion orbit coupling attitude perturbation analysis method. Background technique [0002] At the end of its life, the process of uncontrolled return and re-entry of a large spacecraft to the earth's atmosphere needs to go through the process of orbital decay, re-entry disintegration, and dispersal of disintegrated debris. In order to reliably predict the time and position and velocity information of the spacecraft's de-orbit and re-entry, it is necessary to take countermeasures in advance and provide feasible de-orbit input parameters for the calculation of the disintegration process and debris scattering, which requires a reliable orbit prediction model. However, the flight process of large spacecraft will be affected by cross-basin aerodynamic forces in the atmospheric environment of low-Earth orbit. At the same time, under the action of spac...

AI Technical Summary

Problems solved by technology

However, for large-scale spacecraft flying without control, there is no reliable and effective method to predict the random rollover of its attitude. At the same time, collisions may occur during high-speed motion. There is a certain angle between the solar panel and the main body of the spacecraft, which affects the determination of the windward area

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