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Circuits, Systems and Signal Processing

, Volume 7, Issue 3, pp 345–359 | Cite as

Minimization of transient signals in recursive time-varying digital filters

  • Rudolf Rabenstein
Article

Abstract

Changing the coefficient set of a recursive digital filter during operation results in a transient signal at the filter output. The amplitude of this transient signal may exceed the amplitude of the output signal before and well after the change of coefficients. This effect is rather disturbing in some applications, such as the processing of audio signals. It is shown how these transients can be minimized without increasing the computational complexity of the filter by the use of a properly chosen set of intermediate coefficients.

Keywords

Computational Complexity Output Signal Digital Filter Audio Signal Transient Signal 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. [1]
    H. W. Schüβler,Netzwerke, Signale und Systeme, Band II, Springer-Verlag, Berlin, 1984.Google Scholar
  2. [2]
    L. Thiele,Analytische Netzwerksynthese, Oldenbourg Verlag, München, Wien, 1985.Google Scholar
  3. [3]
    R. A. Roberts and C. T. Mullis,Digital Signal Processing, Addison-Wesley, Reading, MA, 1987.Google Scholar
  4. [4]
    A. Graham,Kronecker Products and Matrix Calculus with Applications, Ellis Horwood, Chichester, 1981.Google Scholar
  5. [5]
    C. W. Barnes, Roundoff noise and overflow in normal digital filters,IEEE Trans. Circuits and Systems,26, 154–159, 1979.Google Scholar
  6. [6]
    R. Rabenstein and R. Czarnach, Stability of recursive time-varying digital filters by state vector transformation,Signal Process.,8 75–92, 1985.Google Scholar
  7. [7]
    B. Lang, Analyse von variablen Digitalfiltern mit Hilfe der Wigner-Verteilung, Studentthesis at the Lehrstuhl für Nachrichtentechnik, University Erlangen, 1986.Google Scholar
  8. [8]
    W. Baudisch, H. Göckler, F. W. Gödecke, W. Herzig, R. Musslich, H. Scheuermann, and J. Wermuth, Schaltungsstrukturen und Algorithmen für einen programmierbaren, in der Tonstudiotechnik universell einsetzbaren Kanalprozessor. Bundesministerium für Forschung und Technologie (State Department of Research and Technology of the Federal Republic of Germany), Research Report TK 0201 4, June 1986.Google Scholar
  9. [9]
    R. Rabenstein, Übertragungsanordnung für digitale Signale, Patent application (FRG) P 37 02 215.6, 26 January 1987.Google Scholar

Copyright information

© Birkhäuser Boston Inc. 1988

Authors and Affiliations

  • Rudolf Rabenstein
    • 1
  1. 1.Lehrstuhl für NachrichtentechnikUniversität Erlangen-NürnbergErlangenGermany

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