Algorithm and Implementation of Direct Closed-Loop Identification via Output Over-Sampling Scheme

Identification algorithm and its implementation are considered for direct closed-loop identification through output over-sampling. It is shown that the plant model can be identified from the input and output data obtained by output over-sampling even though the conventional identifiability conditions are not satisfied. Furthermore, its implementation for the controller and measurement device with fixed-point number is also investigated. The numerical simulations illustrate the effectiveness of the proposed algorithm for practical applications.