Acoustic noise suppression: compromises in identification and control

The objective of this work is to explicitly point out the compromises in the identification and control stages in an acoustic noise suppression experiment, in terms of performance vs. controller order. The identification is a control–oriented robust procedure which takes into account both, parametric and non–parametric models, and is applied to the primary and secondary circuits of an acoustic tube. The control is designed via the H∞ optimal control theory, and the analysis of the closed loop system is performed via the structured singular value (μ).