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In the context of chaotic communications using semiconductor lasers in many instances the message is codified such that the mean power of a bit 1 differs from that of bit 0. For example, in Chaos Modulation the transmitted signal is Pt(t) = (1−ε m(t))Pm(t), where ε is the message modulation amplitude, m(t) is the message being transmitted and Pm(t) is the chaotic carrier.
© 2009 IEEE
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