Your browser does not support JavaScript!

Multifrequency Routh approximants for linear systems

Multifrequency Routh approximants for linear systems

For access to this article, please select a purchase option:

Buy article PDF
(plus tax if applicable)
Buy Knowledge Pack
10 articles for $120.00
(plus taxes if applicable)

IET members benefit from discounts to all IET publications and free access to E&T Magazine. If you are an IET member, log in to your account and the discounts will automatically be applied.

Learn more about IET membership 

Recommend Title Publication to library

You must fill out fields marked with: *

Librarian details
Your details
Why are you recommending this title?
Select reason:
IEE Proceedings - Control Theory and Applications — Recommend this title to your library

Thank you

Your recommendation has been sent to your librarian.

A multipoint Routh gamma - delta canonical continued-fraction expansion for the transfer function of a linear system is derived. Based on this general form, a multifrequency Routh approximant to the system is derived by selecting the expansion points on the imaginary axis and truncating the resulting continued-fraction expansion. A connection between the stability preservation property of the multifrequency Routh approximants and the expansion points on the imaginary axis is established. Thus the multifrequency Routh approximation procedure is flexible in deriving stable reduced-order models while fitting the frequency responses and retaining the time moments and/or Markov parameters of the impulse response of the system.

Related content

This is a required field
Please enter a valid email address