Estimation of filter order for prescribed, reduced group delay FIR filter design

• Autorzy: Konopacki J. , Mościńska K.

Identyfikatory

DOI

10.1515/bpasts-2015-0024

• Języki publikacji: EN

Abstrakty

EN

FIR filters are often applied, as they possess many advantages, including linear-phase response and well elaborated design methods. However, group delay introduced by FIR filters is usually large. The reduction of group delay can be obtained by restriction of the linear phase requirement only to the passband. One of the problems that appear while designing FIR filters with a prescribed value of group delay is the choice of the filter order. In the paper a formula for filter order calculation for the given filter parameters and dedicated for equiripple or quasi-equiripple approximation of the magnitude response has been derived based on experiments. Numerous examples that explain how to use the derived formula have been included.

Słowa kluczowe

EN

digital filters; FIR filter design; filter order estimation

PL

filtry cyfrowe; projekt filtru FIR; filtr FIR

• Wydawca: Polska Akademia Nauk, Wydział IV Nauk Technicznych
• Czasopismo: Bulletin of the Polish Academy of Sciences. Technical Sciences
• Rocznik: 2015
• Tom: Vol. 63, nr 1
• Strony: 209–--216
• Opis fizyczny: Bibliogr. 25, wykr., tab.

Twórcy

autor

Konopacki J.

• Faculty of Automatic Control, Electronics and Computer Sciences, Silesian University of Technology, 16 Akademicka St., 44-100 Gliwice, Poland

autor

Mościńska K.

• Faculty of Automatic Control, Electronics and Computer Sciences, Silesian University of Technology, 16 Akademicka St., 44-100 Gliwice, Poland

Bibliografia

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