Title :
DPLL bit synchronizer with rapid acquisition using adaptive Kalman filtering techniques
Author :
Driessen, Peter F.
Author_Institution :
Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada
fDate :
9/1/1994 12:00:00 AM
Abstract :
A second-order DPLL with time-varying loop gains is applied to the symbol synchronization of burst mode data signals. An algorithm to control the DPLL loop gains is derived from adaptive Kalman filtering theory. Simulation results for the variable gain DPLL compared to a fixed gain DPLL demonstrate the improved acquisition performance
Keywords :
Kalman filters; adaptive filters; data communication systems; digital circuits; filtering and prediction theory; phase-locked loops; signal detection; synchronisation; DPLL bit synchronizer; acquisition performance; adaptive Kalman filtering; burst mode data signals; fixed gain DPLL; rapid acquisition; second-order DPLL; symbol synchronization; time-varying loop gains; variable gain DPLL; Adaptive filters; Clocks; Detectors; Filtering; Frequency shift keying; Frequency synchronization; Kalman filters; Phase detection; Pulse modulation; Timing;
Journal_Title :
Communications, IEEE Transactions on
