An STF-based chaos synchronization and its application to secure communication

Abstract

The strong tracking filter(STF) is introduced as a new synchroniisttion method for the chaotic coinmunication systems with noise existing in both system and clianael. STF improves the extended Kahan filter @KF) which has been used widely in the chaotic communication. Compared with EKF-based method, the STF-based chaos sychmiiization technique is iiiore robust to system inodel error and has sinatler niean square error (MSE).1