Information transmission using phase coupling

The ability to transmit via the presence or absence of phase coupling is investigated. A ternary hypothesis problem, with one signal zero, one signal composed of harmonically related cosines each with a random phase, and one signal composed of harmonically related and phase coupled cosines, is examined. The optimal detector with perfect knowledge, the Bayes optimal detector under the assumption of unknown phase, and a heuristic detector, based on higher-order moments, are designed and analyzed. It is shown that the moment-based detector can distinguish between the three hypotheses, without the exact phases being known.<
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