Low-orbit spacecraft quasi-real-time orbital maneuver detection method based on measured data

Abstract

The invention discloses a low-orbit spacecraft quasi-real-time orbital maneuver detection method based on measured data. Aiming at the characteristics of on-orbit operation rules and actual measurement data of a low-orbit spacecraft, the invention provides the low-orbit spacecraft quasi-real-time orbit maneuver detection method based on the measured data, and the method is characterized in that according to a preset detection threshold value, and after each arc section of the low-orbit spacecraft is tracked, whether an orbital maneuver phenomenon exists in the on-orbit flight process of the low-orbit spacecraft or not can be detected in a quasi-real-time mode, so that the problems that the iterative computation is difficult to converge during the orbital maneuver in the orbital determination process of the low-orbit spacecraft, and the spacecraft is difficult to track after orbital transfer, are effectively solved.

Description

technical field [0001] The invention relates to the field of aerospace measurement and control, in particular to a quasi-real-time orbit maneuver detection method for low-orbit spacecraft based on measured data. Background technique [0002] Since the first human spacecraft went into space in October 1957, aerospace technology has developed rapidly, especially after entering the 21st century, human space activities have increased dramatically, and the functions of spacecraft have become more and more complex. According to the statistics of space targets officially released by the United States, as of December 2019, there are currently more than 2,000 available spacecraft in orbit, most of which are low-orbit spacecraft operating below an altitude of 2,000 kilometers, and there will continue to be more in the future. More spacecraft have entered space, such as the StarLink constellation project of the US company SPACEX, which plans to launch more than 10,000 spacecraft into l...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to detect in real time whether there is orbital maneuvering during the orbital flight of the low-orbit spacecraft, and to solve the problem that iterative calculations are difficult to converge when there is orbital maneuvering in the orbit determination process of the low-orbit spacecraft and the spaceflight after the orbit change. In order to solve the above problems, a quasi-real-time orbit maneuver detection method for low-orbit spacecraft based on measured data is provided.

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