UNSPECIFIED (2000) A general design of mixed IIR-FIR two-channel QMF bank EMERGING TECHNOLOGIES FOR THE 21ST CENTURY. In: IEEE International Symposium on Circuits and Systems (ISCAS 2000), MAY 28-31, 2000, GENEVA, SWITZERLAND.

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Abstract

A general family of mixed IIR/FIR two-channel QMF filter banks with near perfect reconstruction (NPR) is presented. The design method is general in the sense that all possible distortions (aliasing, imaging, amplitude and phase distorsions) can be simultaneously and arbitrarily minimized. The method is based on a simple algorithm, also included, to approximate unstable all-pole filters with FIR filters. The resulting filter bank is efficient because a polyphase implementation is possible and delay is low compared to conventional FIR filter banks. It is also shown that some well-known two-channel FIR and IIR filter banks are particular classes of the proposed one. Examples are also included.

Item Type:	Conference Item (UNSPECIFIED)
Subjects:	Q Science > QA Mathematics > QA76 Electronic computers. Computer science. Computer software T Technology > TK Electrical engineering. Electronics Nuclear engineering
Journal or Publication Title:	ISCAS 2000: IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS - PROCEEDINGS, VOL I
Publisher:	IEEE
ISBN:	0-7803-5482-6
Date:	2000
Number of Pages:	4
Page Range:	pp. 559-562
Publication Status:	Published
Title of Event:	IEEE International Symposium on Circuits and Systems (ISCAS 2000)
Location of Event:	GENEVA, SWITZERLAND
Date(s) of Event:	MAY 28-31, 2000
URI:	http://wrap.warwick.ac.uk/id/eprint/12685

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