具有最优性能的一个混沌同步方案

he optimality of chaos synchronization is investigated. In the drive-response regime, the response systems for a class of chaotic systems are designed as certain nonlinear observers that lead to scalar transmission signals and linear error systems. Based on the linear quadratic optimal control theory for continuous dynamical systems, an optimal synchronization scheme is established to maintain the least error with less control costs during the synchronizing process. In addition, a claim reported in Ref. [11] is shown to be invalid by two counterexamples.