Proposal of Two-Dimensional Self-Matching Receiver Using Chaotic Spatial Synchronization for Free Space Optics Communication System and Its Application to Image Transmission and Code Division Multiplexing

Shinya TAKEDA  Takeshi HIGASHINO  Katsutoshi TSUKAMOTO  Shozo KOMAKI  

IEICE TRANSACTIONS on Electronics   Vol.E90-C   No.2   pp.389-396
Publication Date: 2007/02/01
Online ISSN: 1745-1353
DOI: 10.1093/ietele/e90-c.2.389
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Evolution of Microwave and Millimeter-Wave Photonics Technology)
image transmission,  intensity pattern,  self-matching receiver,  chaotic spatial synchronization,  projection system,  

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This paper proposes a two-dimensional self-matching receiver for Free Space Optics (FSO) communication system using chaotic spatial synchronization. This system is able to obtain the information of two-dimensional code from received pattern. This paper considers that proposed system is applied to two applications. The first application is image transmission. This paper shows that applying proposed system to image transmission enables to restore the desired image, which doesn't require strict alignment of receiver, and evaluates transmission optical power. The second application is Code Division Multiplexing (CDM). This paper shows that applying proposed system to CDM system enables to demodulate desired digital signals regardless of the uncertainty of received position. Moreover, the required transmission optical power and bit error rate performance are obtained by computer simulation.