Frequency response identification using integrated bispectra — Periodic disturbances case

In the paper an approach to discrete-time frequency response identification of a plant operating under feedback in the case of periodic disturbances is presented. In the presented approach to discrete-time frequency response identification integrated bispectra and higher-order non-gaussian multisine excitations are applied. A focus on almost sure convergence of the identified discrete-time frequency response to true plant is given. The presented discussion is illustrated by examples showing effectiveness of the proposed approach.