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A DIGITAL ENCRYPTION AND RECOVERY MODEL USING SELF-SYNCHRONIZING CHAOTIC DYNAMICS

Abstract Details

2003, MS, University of Cincinnati, Engineering : Electrical Engineering.
Nonlinear time-varying (NLTV) algorithms and systems can play an important role in many applications including secure and reliable digital communication. But designing NLTV systems is not as easy as designing linear time-varying systems. Although rich tools for their characterization and analysis are available, we are still in an early stage in terms of their actual design and use. Prof. Ramamoorthy has developed a new paradigm, called the building block approach, for the design of NLTV systems that makes the design job much easier. In this approach, a study of 1) Various electrical elements needed for the design of NLTV circuits; 2) The rules for their interconnections; 3) The types of dynamics that will result from such circuits and 4) The types of elements needed for various applications is made. Knowledge derived from this study is then used to design NLTV systems for different applications. In this thesis, the application of the NLTV building block approach for chaotic systems for secure communication is addressed. In particular, we concentrate on designing systems that can generate digital (or multi-level) signals directly from the analog chaotic system model. This is a significant contribution of this thesis as the building block approach relies on the analog world but most applications depend on the digital implementation. This aspect of generating directly digital signals for transmission is the one which differentiates this work from all other work in the area of synchronous chaotic systems for secure communication. We show in detail how such systems can be designed with relative ease. We also provide simulation results from a number of designed systems operating under different conditions. The results provided demonstrate clearly that the building block approach can be used easily in the design of NLTV systems for a number of complex applications.
Dr. P.A. Ramamoorthy (Advisor)
109 p.

Recommended Citations

Citations

  • WANG, X. (2003). A DIGITAL ENCRYPTION AND RECOVERY MODEL USING SELF-SYNCHRONIZING CHAOTIC DYNAMICS [Master's thesis, University of Cincinnati]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1069440508

    APA Style (7th edition)

  • WANG, XIN. A DIGITAL ENCRYPTION AND RECOVERY MODEL USING SELF-SYNCHRONIZING CHAOTIC DYNAMICS. 2003. University of Cincinnati, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ucin1069440508.

    MLA Style (8th edition)

  • WANG, XIN. "A DIGITAL ENCRYPTION AND RECOVERY MODEL USING SELF-SYNCHRONIZING CHAOTIC DYNAMICS." Master's thesis, University of Cincinnati, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1069440508

    Chicago Manual of Style (17th edition)