Frequency domain system identification: a full estimation approach

The purpose of this paper is to address the full estimation issue, where both the order and the parameters are identified for single-input/single-output linear time-invariant systems. The technique introduced here investigates the system identification problem when the phase information is lacking and only the magnitude of the input/output and the frequency data are available. The system identification approach described in this work has been shown to function with good results on both simulated and measured data