Abstract
In this chapter we first give a brief review of some elementary material on polynomial matrices and the Smith form. We then continue our study of the system ∑ given by the equations
1(t) = Ax(t) + Bu(t), y(t) = Cx(t) + Du(t)
and introduce an important polynomial matrix associated with this system, the system matrix of ∑. Using the system matrix, we introduce the concepts of transmission polynomials, and zeros of the system ∑. Next, we discuss the weakly unobservable subspace, and the controllable weakly unobservable subspace associated with ∑. The weakly unobservable subspace is used to give a geometric characterization of the property of strong observability. We conclude this chapter with a characterization of the transmission polynomials and the zeros of ∑ in terms of the weakly unobservable and controllable weakly unobservable subspace.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
Author information
Authors and Affiliations
Rights and permissions
Copyright information
© 2001 Springer-Verlag London
About this chapter
Cite this chapter
Trentelman, H.L., Stoorvogel, A.A., Hautus, M. (2001). System zeros and the weakly unobservable subspace. In: Control Theory for Linear Systems. Communications and Control Engineering. Springer, London. https://doi.org/10.1007/978-1-4471-0339-4_7
Download citation
DOI: https://doi.org/10.1007/978-1-4471-0339-4_7
Publisher Name: Springer, London
Print ISBN: 978-1-4471-1073-6
Online ISBN: 978-1-4471-0339-4
eBook Packages: Springer Book Archive