滤波对隐藏通信系统性能影响分析

Optical Communication Technology(2012)

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Abstract
依据时域相位码分多址隐藏通信系统模型,研究了宿主滤波器对隐藏系统性能影响。系统仿真表明,滤波器的使用提高了系统性能,减低了隐藏信道的接收难度;随着滤波深度的增加,隐藏信道所需的接收功率减小,且宿主信号与隐藏信号的功率比增大;仿真研究表明当滤波深度达到30dB时可获得最佳性能。
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Key words
optical code division multiple access,phase encoding,steganography communication
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