IEEE Transactions on Automatic Control, Vol.39, No.3, 574-577, 1994
Frequency-Domain Tradeoffs in Loop Transfer Recovery for Multivariable Nonminimum-Phase Discrete-Time-Systems
In this note, we show that there is a tradeoff between the feedback properties of the target feedback loop and the quality of recovery when the Loop Transfer Recovery (LTR) procedure is applied to multivariable nonminimum phase discrete-time systems. Explicit expressions quantifying this tradeoff are provided. The relevant design issues are also highlighted.