Clean system inversion learning control law

In this paper, an iterative learning control approach, clean system inversion, is proposed for multi-input multi-output (MIMO) time-invariant systems, as a remedy to the system inversion law. The analysis and design are carried out in the frequency domain. This model based scheme relies on non-causal filtering and need no high order derivatives of error signals and no numerical differentiation. Experimental results on an industrial robot system show that the scheme is effective.