Nowadays various chaotic secure communication systems based on synchronization of chaotic circuits are widely studied. To achieve synchronization, the control signal proportional to the difference between the circuits signals, adjust the state of one circuit. In this paper the synchronization of two Chua circuits is simulated in SPICE. It is shown that the choice of control signal is be not straightforward, especially in the case of multistability and hidden attractors.
@article{arxiv.1703.09884,
title = {Hidden and self-excited attractors in Chua circuit: SPICE simulation and synchronization},
author = {M. A. Kiseleva and E. V. Kudryashova and N. V. Kuznetsov and O. A. Kuznetsova and G. A. Leonov and M. V. Yuldashev and R. V. Yuldashev},
journal= {arXiv preprint arXiv:1703.09884},
year = {2017}
}