کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5499749 1533629 2017 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Nonlinear unknown input sliding mode observer based chaotic system synchronization and message recovery scheme with uncertainty
ترجمه فارسی عنوان
ورودی ناشناخته ورودی حالت کشویی مبتنی بر هماهنگ سازی سیستم هرج و مرج و برنامه بهبود پیام با عدم اطمینان
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک آماری و غیرخطی
چکیده انگلیسی
In the present manuscript, observer based synchronization and message recovery scheme is discussed for a system with uncertainties. LMI conditions are analytically derived solution of which gives the observer design matrices. Earlier approaches have used adaptive laws to address the uncertainties, however in present work, decoupling approach is used to make observer robust against uncertainties. The methodology requires upper bounds on nonlinearity and the message signal and estimates for these bounds are generated adaptively. Thus no information about the nature of nonlinearity and associated Lipschitz constant is needed in proposed approach. Message signal is recovered using equivalent output injection which is a low pass filtered equivalent of the discontinuous effort required to maintain the sliding motion. Finally, the efficacy of proposed Nonlinear Unknown Input Sliding Mode Observer (NUISMO) for chaotic communication is verified by conducting simulation studies on two chaotic systems i.e. third order Chua circuit and Rossler system.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chaos, Solitons & Fractals - Volume 96, March 2017, Pages 51-58
نویسندگان
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