Proceedings ArticleDOI
Linear phase realization of wave digital lattice filters
I. Kunold
- pp 1455-1458
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TLDR
In this article, it was shown that wave digital lattice filters with a bireciprocal characteristic function can be designed to have a linear phase in the pass band and a numerical example is given.Abstract:
It is shown that wave digital lattice filters can easily be designed to have a linear phase in the pass band. A numerical example is given, which shows that, in particular for wave digital lattice filters with a bireciprocal characteristic function, efficient linear phase realizations can be obtained. >read more
Citations
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Journal ArticleDOI
High-speed recursive digital filters based on the frequency-response masking approach
Håkan Johansson,Lars Wanhammar +1 more
TL;DR: In this paper, a frequency-response masking approach for high-speed recursive infinite-impulse response (IIR) digital filters is introduced, which consists of a periodic model filter, its power-complementary periodic filter, and two masking filters.
Journal ArticleDOI
Wave digital filter structures for high-speed narrow-band and wide-band filtering
Håkan Johansson,Lars Wanhammar +1 more
TL;DR: In this article, a wave digital filter (WDF) structure for high-speed narrow-band and wide-band filtering is introduced, which is composed of a periodic model filter and one or several, possibly periodic, masking filters in cascade.
Journal ArticleDOI
High-speed recursive filter structures composed of identical all-pass subfilters for interpolation, decimation, and QMF banks with perfect magnitude reconstruction
Håkan Johansson,Lars Wanhammar +1 more
TL;DR: In this article, high-speed recursive filter structures for interpolation and decimation with factors of two, and quadrature mirror filter (QMF) banks with perfect magnitude reconstruction, are proposed.
Journal ArticleDOI
Filter structures composed of all-pass and FIR filters for interpolation and decimation by a factor of two
Håkan Johansson,Lars Wanhammar +1 more
TL;DR: In this paper, a frequency-response masking approach was proposed for interpolation and decimation by a factor of two, in which the overall filter makes use of a periodic model filter, its complementary filter, and two masking filters.
Proceedings ArticleDOI
Design of cascaded allpass structures with magnitude and delay constraints using simulated annealing and quasi-Newton methods
A. Jones,S. Lawson,T. Wicks +2 more
TL;DR: In this paper, a filter structure is considered which is made up from all-pass sections, and two design approaches are examined using classical optimization and simulated annealing, and design examples are provided which illustrate the efficacy of these techniques.
References
More filters
Journal ArticleDOI
Wave digital filters: Theory and practice
TL;DR: Wave digital filters (WDFs) as discussed by the authors are modeled after classical filters, preferably in lattice or ladder configurations or generalizations thereof, and have very good properties concerning coefficient accuracy requirements, dynamic range, and especially all aspects of stability under finite-arithmetic conditions.