DocumentCode
1391688
Title
Complex notch filter design using allpass filter
Author
Tseng, Chien-Cheng ; Pei, Soo-Chang
Author_Institution
Dept. of Electron. Eng., Hwa Hsia Coll. of Technol. & Commerce, Taipei, Taiwan
Volume
34
Issue
10
fYear
1998
fDate
5/14/1998 12:00:00 AM
Firstpage
966
Lastpage
967
Abstract
Complex coefficient IIR notch filter design problems are investigated. The specification of a notch filter is first transformed into that of an allpass filter. An effective approach to the design of this desired allpass filter is developed. The realisation of the proposed notch filter is equivalent to the realisation of an allpass filter. Owing to the mirror-image symmetry relation between the numerator and denominator polynomials of allpass filters, the notch filter can be realised by a computationally efficient lattice structure with very low sensitivity
Keywords
IIR filters; all-pass filters; digital filters; filtering theory; lattice filters; notch filters; polynomials; allpass filter; complex coefficient IIR filter; complex notch filter design; computationally efficient lattice structure; denominator polynomials; low sensitivity; mirror-image symmetry relation; numerator polynomials;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19980654
Filename
682936
Link To Document