DocumentCode
2825952
Title
Weighted complementary IIR digital filters
Author
Renfors, Markku ; Mitra, Sanjit K. ; Regalia, Phillip A. ; Neuvo, Yrjö
Author_Institution
Nokia Res. Center, Tampere, Finland
fYear
1991
fDate
11-14 Jun 1991
Firstpage
136
Abstract
The authors examine the properties of weighted complementary IIR (infinite impulse response) filters utilizing either real or complex conjugate allpass subfilters. A generalized structure where the allpass branches include arbitrary real or complex weighting constants is discussed. Applications of these weighted complementary filters include gain equalizers, digital filters with multilevel magnitude response, and sharpening the amplitude response of digital filters realized as a cascade of identical filter stages
Keywords
cascade networks; digital filters; filtering and prediction theory; IIR digital filters; allpass subfilters; amplitude response; filter cascade; gain equalizers; infinite impulse response; multilevel magnitude response; weighted cascaded designs; weighted complementary filters; weighting constants; Costs; Digital filters; Equalizers; Frequency response; IIR filters; Power filters; Prototypes; Transfer functions;
fLanguage
English
Publisher
ieee
Conference_Titel
Circuits and Systems, 1991., IEEE International Sympoisum on
Print_ISBN
0-7803-0050-5
Type
conf
DOI
10.1109/ISCAS.1991.176292
Filename
176292
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