Reply to reviewers for L1/Q Approach for Efficient Computation of Disturbance Rejection Measures for Feedback Control

This paper presents practical methods for computation of disturbance rejection measures [1], which are useful for assessing the dynamic operability of the process. Using L1 optimal control theory, we consider the cases of steady-state, frequency-wise and dynamic systems. In comparison to the available methods [2–4], the proposed approach ensures that a linear, causal, feedback-based controller exists that achieves the computed bounds and the method also scales well with problem dimensions.