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Conference Paper: On the application of variable digital filters (VDF) to the realization of software radio receivers

TitleOn the application of variable digital filters (VDF) to the realization of software radio receivers
Authors
Issue Date2003
Citation
Proceedings - Ieee International Symposium On Circuits And Systems, 2003, v. 3, p. III562-III565 How to Cite?
AbstractThis paper studies the application and design of variable digital filters (VDF) to realize the sample rate converter (SRC) in a new architecture of software radio receivers. The VDF-based SRC provides variable fractional delay in the passband and additional attenuation in the stopband. The design of the VDF using weighted least squares (WLS) and semidefinite programming (SDP) approaches are described and compared. Design results show that both approaches give similar performances but the computational time is significantly lower for the WLS approach. In addition, the digital all-pass filters are proposed to realize the multistage decimators and half-band filter so that the system delay of the digital IF is reduced. Design results show that the complexity of the digital IF using digital all-pass filters is much lower than that using low-delay FIR filters with the same design specifications.
Persistent Identifierhttp://hdl.handle.net/10722/158359
ISSN
References

 

DC FieldValueLanguage
dc.contributor.authorChan, SCen_US
dc.contributor.authorYeung, KSen_US
dc.date.accessioned2012-08-08T08:59:14Z-
dc.date.available2012-08-08T08:59:14Z-
dc.date.issued2003en_US
dc.identifier.citationProceedings - Ieee International Symposium On Circuits And Systems, 2003, v. 3, p. III562-III565en_US
dc.identifier.issn0271-4310en_US
dc.identifier.urihttp://hdl.handle.net/10722/158359-
dc.description.abstractThis paper studies the application and design of variable digital filters (VDF) to realize the sample rate converter (SRC) in a new architecture of software radio receivers. The VDF-based SRC provides variable fractional delay in the passband and additional attenuation in the stopband. The design of the VDF using weighted least squares (WLS) and semidefinite programming (SDP) approaches are described and compared. Design results show that both approaches give similar performances but the computational time is significantly lower for the WLS approach. In addition, the digital all-pass filters are proposed to realize the multistage decimators and half-band filter so that the system delay of the digital IF is reduced. Design results show that the complexity of the digital IF using digital all-pass filters is much lower than that using low-delay FIR filters with the same design specifications.en_US
dc.languageengen_US
dc.relation.ispartofProceedings - IEEE International Symposium on Circuits and Systemsen_US
dc.titleOn the application of variable digital filters (VDF) to the realization of software radio receiversen_US
dc.typeConference_Paperen_US
dc.identifier.emailChan, SC:scchan@eee.hku.hken_US
dc.identifier.authorityChan, SC=rp00094en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-0038082310en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0038082310&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume3en_US
dc.identifier.spageIII562en_US
dc.identifier.epageIII565en_US
dc.identifier.scopusauthoridChan, SC=13310287100en_US
dc.identifier.scopusauthoridYeung, KS=7202425050en_US

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