Novel two-stage comb decimator with improved frequency characteristic

Research output: Chapter in Book/Report/Conference proceedingsChapterpeer-review

Abstract

This paper presents a novel low-power two-stage comb-based decimator in which the passband droop is decreased and the attenuation in all odd folding bands are increased. This is achieved by using simple corrector filter and the sharpening technique in the second stage. The only design parameter is the number of the cascaded comb filters K in the first stage. However, the second stage remains the same for all values of the parameter K. The proposed method is compared with the similar methods in the open literature. FPGA implementation proves that the proposed structure has improved characteristics at the cost of an increase of 33.3% in power consumption, compared with the comb.

Original languageEnglish
Title of host publication2015 IEEE 6th Latin American Symposium on Circuits and Systems, LASCAS 2015 - Conference Proceedings
EditorsAlfredo Arnaud, Fernando Silveira, Lorena Garcia
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479983322
DOIs
Publication statusPublished - 9 Sep 2015
Externally publishedYes
Event6th IEEE Latin American Symposium on Circuits and Systems, LASCAS 2015 - Montevideo, Uruguay
Duration: 24 Feb 201527 Feb 2015

Publication series

Name2015 IEEE 6th Latin American Symposium on Circuits and Systems, LASCAS 2015 - Conference Proceedings

Conference

Conference6th IEEE Latin American Symposium on Circuits and Systems, LASCAS 2015
Country/TerritoryUruguay
CityMontevideo
Period24/02/1527/02/15

Keywords

  • comb filter
  • corrector filter
  • Decimation
  • sharpening

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