A Data Secured Communication System Design Procedure with a Chaotic Carrier and Synergetic Observer
| Autor: | Colin J. Fidge, Alexey Nekrasov, Julia N. Dzuba, Alexey S. Mushenko |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
0209 industrial biotechnology
Observer (quantum physics) Computer Networks and Communications Computer science Chaotic lcsh:TK7800-8360 02 engineering and technology 020901 industrial engineering & automation Secure communication Control theory 0202 electrical engineering electronic engineering information engineering Electrical and Electronic Engineering Steganography synergetic control theory Signal reconstruction business.industry lcsh:Electronics 020208 electrical & electronic engineering observer secured communication Observer (special relativity) chaotic parameter nonlinear modulation Nonlinear system chaotic carrier Hardware and Architecture Control and Systems Engineering dynamic chaos Signal Processing business Digital filter Data transmission |
| Zdroj: | Electronics Volume 9 Issue 3 Electronics, Vol 9, Iss 3, p 497 (2020) |
| ISSN: | 2079-9292 |
| DOI: | 10.3390/electronics9030497 |
| Popis: | We have considered the problem of secure communication by means of chaotic carrier communication channels. Data protection is provided if the signal in the communication channel looks like a stochastic or noisy one, i.e., by the steganography property, and also by using advanced and secured approaches of mixing a useful signal into a chaotic carrier. The problem is to find effective and efficient techniques for useful signal reconstruction at the receiver side. We firstly use a synergetic nonlinear mathematical observer to recover the two useful signals transmitted simultaneously over a single communication channel. Compared to a known observer, the synergetic one operates with initial nonlinear models, i.e., it may be applied directly to chaotic systems. In that system structure, we consider the useful signals as unobservable variables and estimate them by the given model of a chaotic generator. A chaotic data transmission system with two channels is demonstrated the presented mathematical procedure explains the steps of synergetic two-channel observer design. Computer simulation results prove the viability of our approach. The proposed data transmission scheme and the observer design procedure provide effective transmission and reconstruction of informational signals. Reconstruction error is up to approximately 25% but has a very short pulses shape and could be eliminated with further analog or digital filtering algorithms. As an example application, simulation of image transmission and recovery is demonstrated. The study&rsquo s results may be used as a basis for further research into secure data transmission system design. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|