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Atmospheric Optical Communication System Using Subcarrier PSK Modulation
Wei HUANG Jiro TAKAYANAGI Tetsuo SAKANAKA Masao NAKAGAWA
IEICE TRANSACTIONS on Communications
Publication Date: 1993/09/25
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Fiber-optic Microcelluler Radio Communication System and Their Technologies)
Category: Propagation Matters
atmospheric optical communication, scintillation, subcarrier modulation, intermodulation distortion,
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Atmospheric optical communication (AOC) system using subcarrier PSK modulation is proposed and its superiority to OOK modulation in the presence of scintillation is discussed theoretically. An experimental AOC setup with a subcarrier modulated by 155.52(Mb/s) DPSK at light wave-length λ=0.83(µm) over an 1.8(km) outdoor path is employed to show the performance. Theoretical and experimental results are compared under scintillation in clear weather and a good agreement is observed. Finally, AOC systems using subcarrier M-ary PSK and multiple subcarriers are proposed and discussed.