Four-Scroll Hyperchaotic Attractor in a Five-Dimensional Memristive Wien Bridge Oscillator: Analysis and Digital Electronic Implementation

Figure 4

Bifurcation (2a)–(2e) of the system showing local maxima of the coordinate x_max versus the parameter black curve for increasing parameter and red for decreasing parameter . (b): the corresponding graphs of Lyapunov exponent spectra. The system parameters are a = 0.05, b = 0.03, c = 6, d = 3, e = 2, g = 1, k = 2, and f = 1. Initial conditions are (x₀; y₀; z₀; ) = (1; 1; 1; 0.1; 1) (color figure online).

(a)

(b)