Space target orbit association method

A technology for space targets and orbits, applied in the field of spacecraft measurement and control calculations, can solve problems such as inability to give confidence levels, incorrect correlation results, and large calculation loads

Active Publication Date: 2020-07-24
中国人民解放军32035部队
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Problems solved by technology

[0005] To sum up, the current existing orbit correlation method has a large amount of calculation, too much manual intervention, and even wrong correlation results. The correlation result of the same target, and the result can only be yes or no, and the confidence level cannot be given, let alone the correlation result of whether the two targets are coplanar and on the same track

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  • Space target orbit association method
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Embodiment Construction

[0043] The present invention will be further described below in conjunction with accompanying drawing:

[0044] The orbit of a space object is a plane, and its motion law at any time can be completely determined by six basic parameters, which are called orbital elements, orbital elements, or orbital parameters. The earliest and most commonly used orbital elements are the Kepler elements; with the development of space missions and the need for precise orbit determination of various types of orbits, countries based on the Kepler orbit In addition, many forms of orbital radicals have been proposed, such as the first kind of singularity-free radicals, the second kind of singularity-free radicals, equinox radicals, Hellick radicals, etc. Because the geometric characteristics of Kepler radicals are very clear, they are the most typical and commonly used orbital radicals in astronomy. Therefore, the present invention studies the method of using Kepler radicals to correlate target or...

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Abstract

The invention discloses a space target orbit association method. For an unknown space target tracked by using an autonomous search mode, orbit information and a cataloged space target are associated,whether the cataloged target and a to-be-identified target are the same target (the same target), whether the cataloged target and the to-be-identified target operate (are coplanar) in the same orbitplane and whether the cataloged target and the to-be-identified target operate (are on the same orbit) are identified, and the confidence is calculated. Whether the two targets are the same target ornot can be associated, whether the two targets run in the same track surface or run on the same track or not can be associated for two sets of track information which are not the same target, and thetrack association result confidence can be calculated.

Description

technical field [0001] The invention relates to a space vehicle measurement and control computing technology, in particular to a method for associating orbits of space objects. Background technique [0002] Compared with the domestic spacecraft measurement and control system, the monitoring system for the purpose of space object cataloging has the following characteristics: the total amount of observation data is huge. Due to the huge number of space targets, the average amount of orbit measurement data for each target is very small; there are many orbit measurement methods, including guided tracking mode and autonomous search mode; monopulse radar can only track one target at a time, and photoelectric telescope and phase The array radar has multi-target tracking capability, and the phased array radar can search dozens or even hundreds of targets at a time. For a target tracked by the search model method, target identification must first be performed to confirm whether it i...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/18
CPCG06F17/18
Inventor 王秀红张荣之马鑫杜新鹏张玄
Owner 中国人民解放军32035部队
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