The problem of separation of a noise-contaminated observed sum of chaotic signals into the individual components is considered. A noise threshold is found above which high-quality separation is impossible. Below the threshold, each signal is recovered with any prescribed accuracy with a separation method. The threshold effect is shown to be associated with the information content of chaotic signals and a theoretical estimate is given for the threshold.
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| http://dx.doi.org/10.1103/PhysRevE.65.046220 | DOI Listing |
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