Tracking consensus for nonlinear heterogeneous multi-agent systems subject to unknown disturbances via sliding mode control
Zhang Xiang
1
, Wang Jin-Huan
1, †
, Yang De-Dong
2
, Xu Yong
1
(color online) The estimated velocity of the
i
-th follower to the leader (
i
= 1,2,3,4): (a)
, (b)
.