LED chaotic circuit targeting secret communication

In the context of a hybrid continuous-discrete time chaos-based secret communication scheme, the present work replaces the non-linear element of a known jerk-type chaotic system, with a LED. The circuit is simulated in Matlab-Simulink and its behavior analyzed when switching the control parameter - the value of one of the resistors in the scheme. The cases illustrated are relevant for emphasizing the route towards randomness. This is achieved through period-doubling starting from the initial period of the signal corresponding to the LED's output power, which depends on the value of the control parameter. This paper also presents an experimental implementation of the proposed modified Sprott's jerk-type circuit, as well as a comparison between simulation and empirical results. Qualitative and quantitative interpretations of bifurcation diagrams and Lyapunov exponents for the two situations are to be compared in a future research.