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Adaptive synchronization of a switching system and its applications to secure communications
Southeast University, China .ORCID iD: 0000-0002-9970-7684
Southeast University, China .
2008 (English)In: Chaos, ISSN 1054-1500, E-ISSN 1089-7682, Vol. 18, no 2, 023128Article in journal (Refereed) Published
Abstract [en]

This paper studies the adaptive synchronization of a switching system with unknown parameters which switches between the Rössler system and a unified chaotic system. Using the Lyapunov stability theory and adaptive control method, the receiver system will achieve synchronization with the drive system and the unknown parameters would be estimated by the receiver. Then the proposed switching system is used for secure communications based on the communication schemes including chaotic masking, chaotic modulation, and chaotic shift key strategies. Since thesystem switches between two chaotic systems and the parameters are almost unknown, it is more difficult for the intruder to extract the useful message from the transmission channel. In addition, two new schemes in which the chaotic signal used to mask (or modulate) the transmitted signal switches between two components of a chaotic system are also presented. Finally, some simulation results are given to show the effectiveness of the proposed communication schemes.

Place, publisher, year, edition, pages
2008. Vol. 18, no 2, 023128
National Category
Control Engineering
Identifiers
URN: urn:nbn:se:kth:diva-165303DOI: 10.1063/1.2937017ISI: 000257284200028Scopus ID: 2-s2.0-46449098972OAI: oai:DiVA.org:kth-165303DiVA: diva2:807961
Note

QC 20150427

Available from: 2015-04-26 Created: 2015-04-26 Last updated: 2017-12-04Bibliographically approved

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Xia, Weiguo

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