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Erschienen in:
1988 | OriginalPaper | Buchkapitel
The Infinite Impulse Response Linear Equaliser
verfasst von : Bernard Mulgrew, Colin F. N. Cowan
Erschienen in: Adaptive Filters and Equalisers
Verlag: Springer US
Enthalten in: Professional Book Archive
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In many adaptive filtering problems, solutions that use purely FIR filters can provide acceptable performance [87,11,100]. Indeed FIR filters are generally to be preferred as they are unconditionally stable and because of the wide selection of well understood adaptive FIR filter algorithms that are available, cf. chapter 2. However these FIR realisations suffer from problems of indeterminate order when it is necessary to model transfer function poles. In particular, when the poles of transfer function are close to the unit circle in the z-plane, a FIR filter of high order may be required to meet a particular performance goal [101]. The obvious alternative has been the adoption of adaptive IIR filters.