Advertisement

Ladder Wave Digital Filters

  • Lars WanhammarEmail author
  • Tapio Saramäki
Chapter
  • 161 Downloads

Abstract

In this chapter, we discuss the design of wave digital filters based on doubly resistively terminated ladder structures consisting of lossless commensurate-length transmission lines. Wave digital filters (WDF) inherit the low element sensitivity properties from their analog counterparts, which have been designed for maximum power transfer in the passband. Hence, simple and short coefficients can potentially be used in the wave digital filters. Also, the dynamic signal range is large, and the roundoff noise is low in these low sensitivity filter structures.

References

  1. 1.
    Fettweis, A., Meerkötter, K.: On adaptors for wave digital filters. IEEE Trans. Acoust., Speech, Signal Process. 23(6), 516–525 (1975)CrossRefGoogle Scholar
  2. 2.
    Fettweis, A.: Wave digital filters: theory and practice. Proc. IEEE 74(2), 270–327 (1986)CrossRefGoogle Scholar
  3. 3.
    Gray, A.H., Markel, J.D.: Digital lattice and ladder filter synthesis. IEEE Trans. Audio Electroacoust. 21(6), 491–500 (1973)CrossRefGoogle Scholar
  4. 4.
    Gray, A.H., Markel, J.D.: A normalized digital filter structure. IEEE Trans. Acoust., Speech, Signal Process. 23(3), 268–277 (1975)CrossRefGoogle Scholar
  5. 5.
    Gray, A.H., Markel, J.D.: Roundoff noise characteristics of a class of orthogonal polynomial structures. IEEE Trans. Acoust., Speech, Signal Process. 23, 473–486 (1975)CrossRefGoogle Scholar
  6. 6.
    Gray, A.H., Markel, J.D.: Fixed-point implementation algorithms for a class of orthogonal polynomial filter structures. IEEE Trans. Acoust., Speech, Signal Process. 23(5), 486–494 (1975)CrossRefGoogle Scholar
  7. 7.
    Wanhammar, L.: Analog Filters Using MATLAB. Springer, Berlin (2009)CrossRefGoogle Scholar
  8. 8.
    El-Ghoroury, H.S., Gupta, S.C.: Wave digital filter structures with variable frequency characteristics. IEEE Trans. Circuits Syst. 23(10), 624–630 (1976)CrossRefGoogle Scholar
  9. 9.
    Fettweis, A.: Canonic realization of ladder wave digital filters. Intern. J. Circuit Theory Appl. 3(4), 321–332 (1975)MathSciNetCrossRefGoogle Scholar
  10. 10.
    Jarmasz, M.R., Martens, G.O.: Design of canonic wave digital filters using Brune and matched 4-port adaptors. IEEE Trans. Circuits Syst. 34(5), 480–495 (1987)CrossRefGoogle Scholar
  11. 11.
    Constantinides, A.G.: Spectral transformation for digital filters. Proc. IEE 117(8), 1585–1590 (1970)Google Scholar

Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  1. 1.Linköping UniversityLinköpingSweden
  2. 2.Tampere University of TechnologyTampereFinland

Personalised recommendations