Acquisition methods for microsatellite laser communication in space

Xinjun Zhi; Yong Ai; Minjiang Lu

doi:10.1117/12.480532

22 August 2002 Acquisition methods for microsatellite laser communication in space

Xinjun Zhi, Yong Ai, Minjiang Lu

Proceedings Volume 4911, Wireless and Mobile Communications II; (2002) https://doi.org/10.1117/12.480532
Event: Asia-Pacific Optical and Wireless Communications 2002, 2002, Shanghai, China

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.

Citation Download Citation

Xinjun Zhi, Yong Ai, and Minjiang Lu "Acquisition methods for microsatellite laser communication in space", Proc. SPIE 4911, Wireless and Mobile Communications II, (22 August 2002); https://doi.org/10.1117/12.480532

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