title: Dynamical noise filter and conditional entropy analysis in chaos synchronization.
abstract: It is shown that, in a chaotic synchronization system whose driving signal is exposed to channel noise, the estimation of the drive system states can be greatly improved by applying the dynamical noise filtering to the response system states. If the noise is bounded in a certain range, the estimation errors, i.e., the difference between the filtered responding states and the driving states, can be made arbitrarily small. This property can be used in designing an alternative digital communication scheme. An analysis based on the conditional entropy justifies the application of dynamical noise filtering in generating quality synchronization.
authors.affiliation: Temasek Laboratories, Beijing-Hong Kong-Singapore Joint Centre for Nonlinear and Complex Systems (Singapore), National University of Singapore, 119260 Singapore.
authors.forename: Jiao
authors.initials: J
authors.lastname: Wang
authors.forename: C-H
authors.initials: CH
authors.lastname: Lai