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Acquisition technology for optical ground stations in satellite–ground quantum experiments

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Abstract

To establish optical links between an optical ground station (OGS) and a quantum experiment satellite, a method of acquisition for the Micius satellite is proposed in this paper and the acquisition technological specification of the OGS system is analyzed. An acquisition strategy for the OGS is designed to meet the requirements of the quantum experiments. A method is designed to point accurately at the quantum satellite and improve the absolute pointing precision. The results show that the correction accuracy is better than 5 μrad, the acquisition time is less than 5 s, and the acquisition probability is 100% so far.

© 2018 Optical Society of America

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