A static output feedback fuzzy (SOFF) control approach is proposed in order to deal with the problem of synchronization
of two identical hyperchaotic systems. The T-S fuzzy model with its small number of fuzzy IF-THEN rules
is employed to represent many typical nonlinear hyperchaotic systems. Based on the T-S fuzzy hyperchaotic models and
Lyapunov stability theory, a necessary condition for the existence of robust SOFF controllers is presented in terms of a set
of matrix inequalities, which guarantees the stable synchronization of two different hyperchaotic systems. An iterative linear
matrix inequality (ILMI) algorithm is proposed to compute the feedback gains of the suboptimal SOFF controller. Finally,
numerical examples are given to demonstrate the validity and effectiveness of the proposed fuzzy modeling and
synchronization scheme of the hyper chaotic systems.