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Structurally topological algorithm for star recognition and near-Earth space’ object detection

I.G. Zhurkin 1, L.N. Chaban  1, P.Yu. Orlov 1

Moscow State University of Geodesy and Cartography (MIIGAiK),

105064, Moscow, Russia, Gorokhovskii pereulok 4

 PDF, 878 kB

DOI: 10.18287/2412-6179-CO-597

Pages: 375-384.

Full text of article: Russian language.

Abstract:
When solving a variety of celestial navigation tasks there is a problem of determining parameters of spacecraft motion and onboard primary payload orientation based on the coordinates of registered star images. Furthermore, unwanted objects, like active satellites, natural and artificial space debris, that reduce the probability of correct recognition may get into the field of view of a satellite sensor. This prompts the necessity to filter out such interference from the star field images. However, if the objects under recognition are bodies located in near-Earth space, in this case, the star images themselves will act as interferences. In addition, since the detection and cataloging of these objects from the Earth’s surface is complicated by their small size, the atmospheric effects, as well as other technical difficulties, it is worthwhile to use the existing equipment onboard spacecrafts to solve this task. The existing recognition algorithms for star groups, as well as their classification, are presented in this paper. Moreover, a structurally topological approach for identifying groups of stars based on the properties of enveloping polygons used in constructing topological star patterns is proposed. Specific features in the construction of topological configurations on the analyzed set of points, as well as the principles of dynamic space object detection within their limits are described. Results of the numerical experiments performed using the developed algorithm on the star field maps and model scenes are presented.

Keywords:
star recognition, star pattern, digital image processing, autonomous navigation, remote sensing, near-Earth space, space debris, space object.

Citation:
Zhurkin IG, Chaban LN, Orlov PYu. Structurally topological algorithm for star recognition and near-Earth space’ object detection. Computer Optics 2020; 44(3): 375-384. DOI: 10.18287/2412-6179-CO-597.

Acknowledgements:
The research was carried out within the state assignment of the Ministry of Science and Higher Education of the Russian Federation (No. 5.6680.2017/8.9).

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