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
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