Skip to main content
Log in

On a generalization of relative degree

  • Short Communications
  • Published:
Differential Equations Aims and scope Submit manuscript

Abstract

We generalize the notion of relative degree for a controlled dynamical system (possibly, discrete). We show that the new notion of leading incomplete relative degree is uniquely determined for a broad class of “square” dynamical systems (i.e., systems with as many inputs as outputs), including controllable systems. If r is the vector of relative degree of a system in the classical sense, then it is so in the generalized sense as well. We indicate a constructive algorithm for computing the leading incomplete relative degree.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

References

  1. Korovin, S.K., Il’in, A.V., and Fomichev, V.V., Zero Dynamics for Linear Vector Time-Invariant Systems, Dokl. Akad. Nauk Teor. Upravl., 2007, vol. 414, no. 5, pp. 598–604.

    Google Scholar 

  2. Kraev, A.V., On Analog of Relative Degree for Linear Dynamic MIMO-Systems, Dokl. Akad. Nauk Teor. Upravl., 2014, vol. 454, no. 2, pp. 152–157.

    MathSciNet  Google Scholar 

  3. Isidori, A., Nonlinear Control Systems, London, 1999, vol. 2.

  4. Il’in, A.V., Korovin, S.K., and Fomichev, V.V., Metody robastnogo obrashcheniya dinamicheskikh sistem (Method of Robust Inversion for Dynamical Systems), Moscow, 2009.

    MATH  Google Scholar 

  5. Kraev, A.V., On the Reduction of a Third-Order Vector Linear System to a Form with Isidori Relative Degree, Differ. Uravn., 2012, vol. 48, no. 11, pp. 1558–1560.

    MathSciNet  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to A. V. Kraev.

Additional information

Original Russian Text © A.V. Kraev, A.I. Rogovskii, V.V. Fomichev, 2014, published in Differentsial’nye Uravneniya, 2014, Vol. 50, No. 8, pp. 1128–1132.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Kraev, A.V., Rogovskii, A.I. & Fomichev, V.V. On a generalization of relative degree. Diff Equat 50, 1122–1127 (2014). https://doi.org/10.1134/S0012266114080102

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1134/S0012266114080102

Keywords

Navigation