Tc. Newell et al., SYNCHRONIZATION OF CHAOTIC DIODE RESONATORS BY OCCASIONAL PROPORTIONAL FEEDBACK, Physical review letters, 72(11), 1994, pp. 1647-1650
Synchronization of a pair of chaotic diode resonators has been experim
entally achieved by applying a minute feedback signal to the amplitude
of the drive voltage of a slave resonator. The signal is proportional
to the voltage difference between the two resonators and is applied f
or a fraction of the driving cycle. This method is the synchronization
analog of the occasional proportional feedback scheme developed by Hu
nt for controlling unstable periodic orbits in chaotic attractors.