On Passivity Analysis of Bi-directional Associative Memory Neural Networks with Time Delay

The passivity conditions for bi-directional associative memory neural networks with time-varying delays and uncertainties are considered in this paper. We firstly derive the passivity condition for bi-directional associative memory neural networks with constant time delay, and then extend the result to the case with time-varying delays and uncertainties. Based on Lyapunov functionals and linear matrix inequalities, the passivity conditions are presented. The results obtained in this paper improve and extend some of the previous results