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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 3 — Jan. 31, 2011
  • pp: 2381–2390

Analytical expression and optimization of spatial acquisition for intersatellite optical communications

Xin Li, Siyuan Yu, Jing Ma, and Liying Tan  »View Author Affiliations


Optics Express, Vol. 19, Issue 3, pp. 2381-2390 (2011)
http://dx.doi.org/10.1364/OE.19.002381


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Abstract

In intersatellite optical communications it is important to obtain the most efficient performance of acquisition system with respect to acquisition time for a given probability. In this paper a novel approach to the analytical optimization of spatial acquisition is presented as an alternative of the conventional Monte Carlo simulation. First, an analytical expression of estimating mean acquisition time (MAT) is derived as a function of the desired acquisition probability, taking into account the distribution function of satellite position, field of uncertainty (FOU), beam divergence angle and dwell time. Accordingly, the analytical expression of multi-scan, which is always adopted by practical optical terminals to ensure the acquisition success, is also presented. Then, by minimizing the MAT of multi-scan, the optimum ratio of the FOU θ U to the pointing error deviation σ is obtained, which is θ U / σ = 1.3 . An example for a practical intersatellite acquisition between a Low Earth Orbit Satellite and a Geostationary Earth Orbit Satellite is given. And the theoretical result calculated by the proposed analytical expression is approximately equal to the result by Monte Carlo simulation. The results can be used in designing acquisition system for the intersatellite optical communications.

© 2011 OSA

OCIS Codes
(060.4510) Fiber optics and optical communications : Optical communications
(350.6090) Other areas of optics : Space optics
(060.2605) Fiber optics and optical communications : Free-space optical communication

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: November 22, 2010
Revised Manuscript: December 28, 2010
Manuscript Accepted: January 17, 2011
Published: January 25, 2011

Citation
Xin Li, Siyuan Yu, Jing Ma, and Liying Tan, "Analytical expression and optimization of spatial acquisition for intersatellite optical communications," Opt. Express 19, 2381-2390 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-3-2381


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