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大气激光通信非对称限幅光正交频分复用技术

Yong WANG,Jia-nian CAO

Guangzi Xuebao/Acta Photonica Sinica（2011）

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Abstract
将一种新的正交频分复用调制技术运用到大气激光通信系统中,分析了采用这种非对称限幅光正交频分复用调制技术的大气激光通信系统在大气湍流信道下的性能.在此基础上,把非对称限幅光正交频分复用调制方案与传统的开关键控及直流偏置光正交频分复用调制方案进行了比较,并在大气湍流信道中进行了仿真.仿真结果表明:非对称限幅光正交频分复用调制技术增强了系统对大气湍流的抗干扰能力,该方案可以满足大气激光通信系统的需要.
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Key words
Asymmetrically clipped optical OFDM,Atmospheric laser communication,Atmospheric turbulence
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