On the Use of Interval Extensions to Estimate the Largest Lyapunov Exponent from Chaotic Data

Figure 5

LLE calculation for chaotic jerk circuit. The -axis is the simulation time and the -axis is the log of the lower bound error. Using a polynomial NARMAX and interval extension, our method has estimated the LLE to be equal to 0.0787, which represents a good agreement with the value suggested by [21].