Excitation of a potentially self-oscillating state in an oscillator with delay and inertia exposed to the simultaneous action of regular and chaotic signals

An analysis is made of the possibility of inducing a potentially self-oscillating state in a bistable self-oscillating system exposed simultaneously to regular and chaotic signals, as applied to the covert transfer of information in a binary computational system. A system of nonlinear differential difference equations is derived, which describe the behavior of an oscillator with delay and inertia under the action of complex oscillations in a given time interval. It is shown numerically that even when a potentially self-oscillating state is not excited by an external regular signal, stochastic oscillations, as well as providing a masking effect, may function as an additional stimulus to transfer the system to the basin of attraction of a potentially selfoscillating attractor. Pis’ma Zh. Tekh. Fiz. 23, 66–71 (July 26, 1997)