Parameter matching using adaptive synchronization of two Chua´s oscillators

In this paper, we develop an adaptive synchronization technique for parameter matching with chaotic persistent excitation (PE). Two Chua´s oscillators, identical in every parameter except for one, are set up in a master/slave configuration where the slave´s mismatched parameter is adaptable. Using Lyapunov functions and incorporating the presence of PE, adaptive control laws are designed to ensure exact parameter matching. One of the derived adaptive controllers is experimentally validated by using an adaptive inductor-gyrator composed of current feedback op-amps (CFOAs).