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Article: Designing globally optimal delta-sigma modulator topologies via signomial programming

TitleDesigning globally optimal delta-sigma modulator topologies via signomial programming
Authors
KeywordsConvexification
Delta-Sigma Modulator
Global Optimization
Signomial Programming
Topology Optimization
Issue Date2009
PublisherJohn Wiley & Sons Ltd. The Journal's web site is located at http://www3.interscience.wiley.com/cgi-bin/jhome/1976
Citation
International Journal Of Circuit Theory And Applications, 2009, v. 37 n. 3, p. 453-472 How to Cite?
AbstractWe present a design methodology for globally optimizing the topologies of delta-sigma modulators (DSMs). Previous work cast the design task into a general non-convex, nonlinear programming problem, whereas we propose to recast it as a signomial programming problem. Convexification strategies are presented for transforming the signomial programming problem into its equivalent convex counterpart, thereby enabling the solution of globally optimal design parameters. It is also possible to include circuit non-ideal effects that affect the transfer function of the modulator into the formulation without affecting the computational efficiency. The proposed framework has been applied to topology synthesis problems of single-loop and multi-loop low-pass DSMs based on discrete-time circuitry. Numerical results confirm the effectiveness of the proposed approach over conventional nonlinear programming techniques. Copyright © 2008 John Wiley & Sons, Ltd.
Persistent Identifierhttp://hdl.handle.net/10722/155513
ISSN
2015 Impact Factor: 1.179
2015 SCImago Journal Rankings: 0.384
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorHo, YHAen_US
dc.contributor.authorKwan, HKen_US
dc.contributor.authorWong, Nen_US
dc.contributor.authorHo, KLen_US
dc.date.accessioned2012-08-08T08:33:52Z-
dc.date.available2012-08-08T08:33:52Z-
dc.date.issued2009en_US
dc.identifier.citationInternational Journal Of Circuit Theory And Applications, 2009, v. 37 n. 3, p. 453-472en_US
dc.identifier.issn0098-9886en_US
dc.identifier.urihttp://hdl.handle.net/10722/155513-
dc.description.abstractWe present a design methodology for globally optimizing the topologies of delta-sigma modulators (DSMs). Previous work cast the design task into a general non-convex, nonlinear programming problem, whereas we propose to recast it as a signomial programming problem. Convexification strategies are presented for transforming the signomial programming problem into its equivalent convex counterpart, thereby enabling the solution of globally optimal design parameters. It is also possible to include circuit non-ideal effects that affect the transfer function of the modulator into the formulation without affecting the computational efficiency. The proposed framework has been applied to topology synthesis problems of single-loop and multi-loop low-pass DSMs based on discrete-time circuitry. Numerical results confirm the effectiveness of the proposed approach over conventional nonlinear programming techniques. Copyright © 2008 John Wiley & Sons, Ltd.en_US
dc.languageengen_US
dc.publisherJohn Wiley & Sons Ltd. The Journal's web site is located at http://www3.interscience.wiley.com/cgi-bin/jhome/1976en_US
dc.relation.ispartofInternational Journal of Circuit Theory and Applicationsen_US
dc.subjectConvexificationen_US
dc.subjectDelta-Sigma Modulatoren_US
dc.subjectGlobal Optimizationen_US
dc.subjectSignomial Programmingen_US
dc.subjectTopology Optimizationen_US
dc.titleDesigning globally optimal delta-sigma modulator topologies via signomial programmingen_US
dc.typeArticleen_US
dc.identifier.emailWong, N:nwong@eee.hku.hken_US
dc.identifier.emailHo, KL:klho@eee.hku.hken_US
dc.identifier.authorityWong, N=rp00190en_US
dc.identifier.authorityHo, KL=rp00117en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1002/cta.482en_US
dc.identifier.scopuseid_2-s2.0-63749133284en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-63749133284&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume37en_US
dc.identifier.issue3en_US
dc.identifier.spage453en_US
dc.identifier.epage472en_US
dc.identifier.isiWOS:000264960300004-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridHo, YHA=24558677900en_US
dc.identifier.scopusauthoridKwan, HK=21934115800en_US
dc.identifier.scopusauthoridWong, N=35235551600en_US
dc.identifier.scopusauthoridHo, KL=7403581592en_US

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