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Suppression of overflow limit cycles in LDI all-pass/lattice filters
2000 (English)In: IEEE Transactions on Circuits And Systems Part I: Fundamental Theory and Applications, ISSN 1057-7122, E-ISSN 1558-1268, Vol. 47, no 4, 594-598 p.Article in journal (Refereed) Published
Abstract [en]

In this paper it is shown that zero-input overflow limit cycles can be suppressed in a class of lossless digital integrator (LDI) all-pass filters. namely, that introduced in [1], This holds for any filter order, provided that saturation overflow characteristics are used at the input of each delay and for certain restrictions for the multiplier values. The results are shown to apply also to lossless digital differentiator (LDD) filters. The restrictions of multiplier values have the effect of excluding certain combinations of poles within the unit circle, most of which are in the left half circle where corresponding LDD filters can be used. Asymptotic stability can be guaranteed for all second-order LDI and LDD filters.

Place, publisher, year, edition, pages
2000. Vol. 47, no 4, 594-598 p.
Keyword [en]
all-pass filter, LDI filter, limit cycles, stability, wave digital-filters, ladder filters, realization, design
Identifiers
URN: urn:nbn:se:kth:diva-19764ISI: 000087081000020OAI: oai:DiVA.org:kth-19764DiVA: diva2:338456
Note
QC 20100525Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2017-12-12Bibliographically approved

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