NDLI: Design of nearly linear-phase recursive digital filters by using unconstrained least-pth minimax optimization

Content Provider	IEEE Xplore Digital Library
Author	Nagaraj, S.B. Nongpiur, R. Antoniou, A.
Copyright Year	2010
Description	Author affiliation: Department of Electrical and Computer Engineering, University of Victoria, BC V8W 3P6, Canada (Nagaraj, S.B.; Nongpiur, R.; Antoniou, A.)
Abstract	A method for the design of nearly linear-phase recursive digital filters is proposed. The recursive filter is assumed be a cascade arrangement of second-order biquadratic sections whose transfer functions are expressed in the polar form. An error function is formulated based on the difference between the actual complex frequency response of the filter and the desired frequency response. Then by using a least-pth minimax algorithm, the required design is obtained. The new method achieves filter stability through the use of a parameterization scheme based on the so-called sigmoid function and it incorporates a mechanism by which an arbitrary prescribed stability margin can be achieved. The optimization engine used in the least-pth algorithm is an unconstrained quasi-Newton algorithm based on the Broyden-Fletcher-Goldfarb-Shanno updating formula and it incorporates a nonuniform adaptive variable sampling technique to prevent spikes in the error function. Several filter design examples demonstrate that the proposed method is very efficient in terms of computational effort required since it is an unconstrained method and, furthermore, it can yield designs that are superior relative to some of the known state-of-the-art methods.
Starting Page	1
Ending Page	6
File Size	2683450
Page Count	6
File Format	PDF
ISBN	9781424462858
e-ISBN	9781424462872
DOI	10.1109/ISCCSP.2010.5463429
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-03-03
Publisher Place	Cyprus
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Algorithm design and analysis Stability Design methodology Nearly linear-phase filters Transfer functions Minimax techniques sigmoid transformation least-pth optimization Digital filters Engines Design optimization Sampling methods Frequency response recursive (IIR) digital filters
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in