Modeling and reality analysis of beaconless spatial acquisition for intersatellite laser communication system

Min Zhang; Shoufeng Tong; Yansong Song; Lei Zhang; Yunjie Teng

doi:10.1117/1.OE.56.10.106108

17 October 2017 Modeling and reality analysis of beaconless spatial acquisition for intersatellite laser communication system

Min Zhang, Shoufeng Tong, Yansong Song, Lei Zhang, Yunjie Teng

Author Affiliations +

Optical Engineering, Vol. 56, Issue 10, 106108 (October 2017). https://doi.org/10.1117/1.OE.56.10.106108

Abstract

For an optical satellite link, the error sources that influence the pointing accuracy of the terminals include the attitude estimation error, ephemeris accuracy, and the boresight alignment error. It means an uncertainty cone (UC) exists for the spatial acquisition process. The acquisition process is a continuous adjustment for the visual axis of the two communication terminals, to enable them to detect the light signal from the other end, and finally realize the light closed loop. Beaconless acquisition algorithm and the corresponding acquisition process, modeling for spiral scan pattern and the simulation results of staring-scanning mode are presented. The UC scan range is 5 mrad, through the overlap with a spot divergence angle of 80 μrad, the total acquisition time is 98 s.

Citation Download Citation

Min Zhang, Shoufeng Tong, Yansong Song, Lei Zhang, and Yunjie Teng "Modeling and reality analysis of beaconless spatial acquisition for intersatellite laser communication system," Optical Engineering 56(10), 106108 (17 October 2017). https://doi.org/10.1117/1.OE.56.10.106108

Received: 7 July 2017; Accepted: 29 September 2017; Published: 17 October 2017

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