M. Gilli, INVESTIGATION OF CHAOS IN LARGE ARRAYS OF CHUAS CIRCUITS VIA A SPECTRAL TECHNIQUE, IEEE transactions on circuits and systems. 1, Fundamental theory andapplications, 42(10), 1995, pp. 802-806
A spectral technique is proposed for studying and predicting chaos in
a one-dimensional array of Chua's circuits. By use of a suitable doubl
e transform, the network is reduced to a scalar Lur'e system to which
the describing function technique is applied for discovering the exist
ence and the characteristics of periodic waves. Finally, by the comput
ation of the distortion index, an approximate tool is given for detect
ing the occurrence of chaos.