Generalized Composite Nonlinear Feedback Control Technique to Track Non-step References

A generalized composite nonlinear feedback (CNF) control technique was presented to track non-step references. A reference generator was adopted to supplement the CNF control technique so as to track the non-step references. The reference generator can be designed to produce a desired reference. The generalized CNF control law comprises the reference generator and a modified enhanced CNF control law. The proposed method was applied to design control laws for an XY-table. Simulation and implementation results verify that the generalized CNF control law is indeed capable of tracking the non-step references