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Proceedings Paper

Acquisition methods for microsatellite laser communication in space
Author(s): Xinjun Zhi; Yong Ai; Minjiang Lu
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Paper Abstract

There is a trend towards satellite laser communication using advanced laser technology including developing a network based on microsatellite laser communication. But the advantage of small laser beam divergence creates a complex problem for acquisition, pointing and tracking. Microsatellite laser communication networks require research in systems and algorithms for acquisition. The purpose of the acquisition system is to compensate for large pointing errors at the beginning of the process and to achieve the minimal desired errors that will provide the beginning of the tracking and optical communication phase. In this process the requirement is to detect the optical signal with a given probability within a given time. The paper will describe several acquisition methods and compare their probability of acquisition and the acquisition time. These acquisition methods include Stare/Stare Method Scan/Stare Methoth Scan/Scan MethodS Stare/Scan Method. In the process we mainly discuss two kinds of scanning patterns. They are raster scanning and spiral scanning. Furthermore, we will examine influences of satellite vibrations on the acquisition scanning because this is the major difficulty in this process. We will give the integrate stimulation and suggest a correction algorithm.

Paper Details

Date Published: 22 August 2002
PDF: 8 pages
Proc. SPIE 4911, Wireless and Mobile Communications II, (22 August 2002); doi: 10.1117/12.480532
Show Author Affiliations
Xinjun Zhi, Wuhan Univ. (China)
Yong Ai, Wuhan Univ. (China)
Minjiang Lu, Wuhan Univ. (China)

Published in SPIE Proceedings Vol. 4911:
Wireless and Mobile Communications II
Hequan Wu; Chih-Lin I; Jari Vaario, Editor(s)

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