• DocumentCode
    1395642
  • Title

    An SNR Dependent Model for the CDMA FLL

  • Author

    Curran, James ; Lachapelle, Gerard ; Murphy, Colin C.

  • Author_Institution
    Dept. of Electr. & Electron. Eng., Univ. Coll. Cork, Cork, Ireland
  • Volume
    60
  • Issue
    3
  • fYear
    2012
  • fDate
    3/1/2012 12:00:00 AM
  • Firstpage
    1522
  • Lastpage
    1527
  • Abstract
    The tracking bandwidth and variance of the code-division multiple-access (CDMA) frequency-lock loop (FLL) are considered in this correspondence. It is shown that the behavior of the discriminator can vary significantly with varying SNRc with corresponding variations in loop performance. A model is presented which reflects this signal-to-noise ration (SNR)-sensitivity and, thus, facilitates accurate loop design.
  • Keywords
    code division multiple access; frequency locked loops; CDMA FLL; SNR dependent model; code-division multiple-access frequency-lock loop; loop design; signal-to-noise ration-sensitivity; Bandwidth; Frequency estimation; Frequency locked loops; Multiaccess communication; Noise; Thermal noise; Tracking loops; Code-division multiple access (CDMA); Global Navigation Satellite System (GNSS); frequency discriminator; frequency estimation; frequency-lock loop (FLL);
  • fLanguage
    English
  • Journal_Title
    Signal Processing, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    1053-587X
  • Type

    jour

  • DOI
    10.1109/TSP.2011.2178840
  • Filename
    6099641