  For a network of interconnected nonlinear dynamical systems an adaptive
leader-follower output feedback synchronization problem is considered. The
proposed structure of decentralized controller and adaptation algorithm is
based on speed-gradient and passivity. Sufficient conditions of synchronization
for nonidentical nodes are established. An example of synchronization of the
network of nonidentical Chua systems is analyzed. The main contribution of the
paper is adaptive controller design and analysis under conditions of incomplete
measurements, incomplete control and uncertainty.
