• DocumentCode
    1104496
  • Title

    Adaptive algorithm for increasing image rejection ratio in low-IF receivers

  • Author

    Gimeno-Martín, A. ; Pardo-Martín, J.M. ; Ortega-González, F.J.

  • Author_Institution
    Univ. Politec. de Madrid, Madrid
  • Volume
    44
  • Issue
    6
  • fYear
    2008
  • Firstpage
    447
  • Lastpage
    448
  • Abstract
    An adaptive method for compensating mismatch effect on an I/Q demodulation is presented. It is based on the correlation between the desired and image band that appears when there is a mismatch in any branch. The proposed algorithm is specially intended for narrowband low-IF receivers. No calibration source is neccesary. Up to 91 dB of image rejection ratio is achieved with narrow-bandwidth signals (up to 6.25% of the sampling frequency).
  • Keywords
    correlation methods; demodulation; radio receivers; I/Q demodulation; adaptive algorithm; correlation method; image rejection ratio; narrow-bandwidth signals; narrowband low-IF receiver;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:20083236
  • Filename
    4472434
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1104496