• DocumentCode
    844535
  • Title

    Precise variable-Q filter design [DSP Tips & Tricks]

  • Author

    Engelberg, Shlomo

  • Author_Institution
    Electron. Dept., Jerusalem Coll. of Technol., Jerusalem
  • Volume
    25
  • Issue
    5
  • fYear
    2008
  • fDate
    9/1/2008 12:00:00 AM
  • Firstpage
    113
  • Lastpage
    119
  • Abstract
    In this article, it describe two ways to implement a variable-Q digital filter. First, present a simple variable-Q filter and then illustrate why its frequency response is less than ideal. Next, show a trick to modify that filter, making its performance nearly ideal. As always, the choice of which filter to use is made based on the user´s application.
  • Keywords
    Q-factor; band-pass filters; digital filters; frequency response; frequency response; user application; variable-Q digital filter; Adaptive filters; Band pass filters; Digital filters; Digital signal processing; Feedback; Filtering theory; Frequency response; Passband; Signal design; Transfer functions;
  • fLanguage
    English
  • Journal_Title
    Signal Processing Magazine, IEEE
  • Publisher
    ieee
  • ISSN
    1053-5888
  • Type

    jour

  • DOI
    10.1109/MSP.2008.927303
  • Filename
    4607221
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=844535