Interval digital modeling of chaotic nonlinear systems
Cheng-Shion Shieh, Yi-Yu Lu, Jyun-hong Lin · 2010
This paper proposes a new method based on gradient operator together with interval arithmetic operations to converter a continuous-time chaotic nonlinear system to an equivalent discrete-time uncertain model. The bounds of interval system matrices via the proposed method are able to tightly enclose the exact nonlinear system. Finally we take a nonlinear chaotic circuit to illustrative our method's effectiveness.