Decoding information by following parameter modulation in the transmitter via synchronization

This paper shows that the transmission of binary information using two diff erent chaotic attractors in Chua's circuit for the two symbols +/-1 of the information (Dedieu ct al., IEEE Trans. Circuits Syst. 40(10) (1993) 634) c an be decoded using a receiver which is a Chua's circuit subsystem driven b y the transmitted signal bearing the information. The parameters of the rec eiver are adapted by the synchronization error of the receiver to the trans mitted signal. Since the receiver follows the parameter modulations in the transmitter the information can be read out by examining the evolution of t he parameters of the receiver: It is shown by numerical simulations that th e performance of the system is robust to parameter mismatches and external noise.