A new chaos synchronization scheme and its application to secure communications

• DOI: 10.1007/s11071-013-0824-9
• Publication Date: 2013-03-04T23:17:40Z
• Authors: Li-feng Zhang; Xin-lei An; Jian-gang Zhang
• Keywords: 0103 physical sciences; 01 natural sciences

Under the framework of drive-response systems, a new method of complete dislocated general hybrid projective synchronization (CDGHPS) is proposed. In this design, every state variable of drive system does not equal the corresponding state variable of response system, but equal other ones of response system while evolving in time. Especially, complete dislocated synchronization, dislocated anti-synchronization and projective dislocated synchronization can be considered all as the special cases of the proposed method. In addition, this method is applied to secure communication through chaotic masking, the unpredictability of the scaling factor in projective synchronization can additionally enhance the security of communication. In consideration of random white noise, we study the random white noise perturbing for the transmission of an information signal. Finally, eliminate noise using wavelet transform. Numerical simulations are given to show the effectiveness of these methods.