Application of Kalman filters with a loop delay in synchronization

Discrete-time Kalman filters under a loop-delay constraint suffer performance loss and cease to be optimal. In this letter, modified Kalman filters are proposed to compensate for loop delay. The proposed filter performance is similar to a Kalman predictor. The results are applied to synchronizer loo...

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Bibliographic Details
Published inIEEE transactions on communications Vol. 50; no. 5; pp. 703 - 706
Main Author Patapoutian, A.
Format Journal Article
LanguageEnglish
Published New York IEEE 01.05.2002
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Covariance matrix
Delay
Detectors
Disturbances
Exact solutions
Filtering
Gain
Intersymbol interference
Kalman filters
Mathematical analysis
Optimization
Performance loss
Sampling methods
Synchronization
Timing
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Summary:Discrete-time Kalman filters under a loop-delay constraint suffer performance loss and cease to be optimal. In this letter, modified Kalman filters are proposed to compensate for loop delay. The proposed filter performance is similar to a Kalman predictor. The results are applied to synchronizer loop-filter, design. Closed form expressions for both the update gain and the performance values are derived for first- and second-order disturbance models.
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ISSN:0090-6778
1558-0857
DOI:10.1109/TCOMM.2002.1006550