[1] [1] WANG X S, HONG H, SU C Y. Robust adaptive control a class of nonlinear systems with an unknown dead-zone [J]. Automatica,2004,40(3):407-413.

[2] [2] ZHANG T P, YI Yang. Adaptive fuzzy control for a class of MIMO nonlinear systems with unknown dead-zones[J]. Acta Automatica Sinica,2007,33(1):96-100.

[3] [3] WANG D, HUANG J. Neural network-based adaptive dynamic surface control for a class of uncertain nonlinear systems in strict-feedback form[J]. IEEE Trans on Neural Networks,2005,16(1):195-202.

[4] [4] GE S S, HONG F, LEE T H. Adaptive neural control of nonlinear time-delay systems with unknown virtual control coefficients [J]. IEEE Trans on Systems, Man and Cybernetics-Part B,2004,34(1):499-516.

[5] [5] SHYU K K, LIU W J, HSU K C. Design of large-scale time-delayed system with dead-zone via variable structure control [J]. Automatica,2005,41(7):1239-1246.

[6] [6] GE S S, HONG F,LEE T H. Robust adaptive control of nonlinear systems with unknown time delays [J]. Automatic control,2005,41(7):1181-1190.

[7] [7] GE S S, TEE K P. Approximation-based control of nonlinear MIMO time-delay systems [J]. Automatica,2007,43(1):31-43.

[8] [8] HALE J. Theory of functional differential equations[M].New York: Springer,1997.

[9] [9] ZHANG T P, GE S S. Adaptive neural control of MIMO nonlinear time-varying delay systems with unknown dead-zone and gain signs [J]. Automatica,2007,43(6):1021-1033.

[11] [11] GE S S, HONG F, LEE T H.Adaptive neural network control of nonlinear systems with unknown time delays[J].IEEE Trans Automat Contrd,2003,48(11):2004-2010