A note on the derivation and use of reduced-order models Page 1 118 IEEE TRANSACTIONS OK
AUTOMATIC CONTROL, FEBRUARY 1976 (4.9) (4.10) (4.1 1) (4.12) (4.13) (4.14) (4.15) (4.16) …

This paper is concerned with the approximation of complex dynamical systems by simple
models. A min-max approach is taken, when input and initial conditions run over given …

The problem considered is the following? given a linear dynamic system of order n, find the
best model of order m, in< ra, with which to derive a suboptimal control for the given system …

The problem of replacing the time-varying linear system ̇ X= A (t) X by a stationary one ̇
Y= BY is investigated. The matrix B is selected so that X (t)= Y (t) in the interval 0, T. Several …

This paper deals with the problem of reducing the complexity of linear, time-invariant and
dynamic systems which are described by input-output data corrupted by noise. The goal of …

A technique for modeling linear time-varying differential systems by linear time-invariant
systems of lower order is discussed and criteria for determining stability, uniqueness, and …

Application of routh approximant method for reducing the order of a class of time-varying
systems Page 1 110 IEEE TRANSACTIONS ON AUTOMATIC CONTROL, VOL AC-25, NO. 1 …

Das Interesse an vereinfachten Modellen hat, durch die Einsatzmöglichkeiten bei der
direkten digitalen Regelung (DDC) und der Überwachung, in den letzten Jahren erheblich …

The paper deals with the parametric problem of multiple-input multiple-output (MIMO)
system identification under deterministic conditions. Two different identification procedures …

A computationally simple approximation to the minimum energy controller for a linear system
is achieved by reducing the complexity of the mathematical model of the system. After …