A decomposition based control design approach to output tracking for multivariable nonlinear non-minimum phase systems

We study the output tracking problem for a restricted class of square nonlinear non-minimum phase systems. Our approach is based on decomposing such systems into a minimum phase part and a non-minimum phase part. This decomposition approach leads to a simpler non-minimum phase problem than the original one. We also identify a class of tracking commands for which the output tracking problem has a solution. A multivariable flight control problem is used to demonstrate the approach.