An Evolutionary Algorithm for Identification of Non-Stationary Linear Plants With Time Delay

The identification of time delay in the linear plant is one of the important tasks. It is especially hard problem when the plant is non-stationary. New possibility in this field is opened by application of an evolutionary algorithm. The method of identification proposed in the paper is based on three classes of input signals. In the first case we can obtain and operate on the whole unit step response. In the second way we operate on a random signal of control, and in the last we have the stairs input signal. The identification without and with disturbances is considered.