Decoding Information by Following Parameter Modulation in the Transmitter via Synchronization

This paper shows that the transmission of binary information using two different chaotic attractors in Chua's circuit for the two symbols ±1 of the information (Dedieu et al., IEEE Trans. Circuits Syst. 40(10) (1993) 634) can be decoded using a receiver which is a Chua's circuit subsystem driven by the transmitted signal bearing the information. The parameters of the receiver are adapted by the synchronization error of the receiver to the transmitted signal. Since the receiver follows the parameter modulations in the transmitter, the information can be read out by examining the evolution of the parameters of the receiver. It is shown by numerical simulations that the performance of the system is robust to parameter mismatches and external noise.