Research on beaconless spatial acquisition for optical inter-satellite communication

Xiongfeng Wan; Shiqi Hao; Dai Zhang; Qingsong Zhao; Chenlu Xu; Jinying Tang

doi:10.1117/12.2504899

30 January 2019 Research on beaconless spatial acquisition for optical inter-satellite communication

Xiongfeng Wan, Shiqi Hao, Dai Zhang, Qingsong Zhao, Chenlu Xu, Jinying Tang

Proceedings Volume 10841, 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Meta-Surface-Wave and Planar Optics; 108410L (2019) https://doi.org/10.1117/12.2504899
Event: Ninth International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT2018), 2018, Chengdu, China

Abstract

Beaconless spatial acquisition contribute a lot to designing a more integrated and smaller laser communication terminal for optical inter-satellite communication. In this paper, we present an analytical model of beaconless spatial acquisition on the influence of vibration. Two kinds of scan methods are analyzed, which are single scan and multi-scan. The analytical expressions of the acquisition probability of single scan and the mean acquisition time of multi-scan are derived. Numerical simulation and Monte Carlo experiment are adopted. The simulation results show that the acquisition probability of single scan asymptotically approaches a constant value with the increase of vibration levels and becomes higher if the beam divergence is increased, but the scan beam gain decrease at the same time. So, the overall acquisition link margin should be sufficient when increasing the beam divergence. What’s more, the accurate location of the target satellite has a great influence on the acquisition probability. When it comes to the multi-scan mode, the shortest mean acquisition time is got at the vibration level of 40μrad. And, the increase of multi-scan times can overcome the influence of vibration efficiently. The conclusions above can give some guides to the design of beaconless spatial acquisition system.

Citation Download Citation

Xiongfeng Wan, Shiqi Hao, Dai Zhang, Qingsong Zhao, Chenlu Xu, and Jinying Tang "Research on beaconless spatial acquisition for optical inter-satellite communication", Proc. SPIE 10841, 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Meta-Surface-Wave and Planar Optics, 108410L (30 January 2019); https://doi.org/10.1117/12.2504899

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KEYWORDS

Satellites

Optical communications

Laser communications

Monte Carlo methods

Satellite communications

Target acquisition

Analytical research

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