Modelling large dynamical systems with industrial specifications

Abstract
For a linear single-input, single-output time-invariant system, techniques for constructing a low-order model and modelling an approximate high-order model with industrial specifications are presented. First, a second-order model with a phase-advance factor is established. Next, a. third-order model constructed with industrial specifications is illustrated. Finally, a method to construct an approximate high-order model from a low-order one via continued fraction technique is presented.