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Application and performance of a dual-loop adaptive RLS Kalman estimator for carrier recovery in a Q2PSK system

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2 Author(s)
Cilliers, J.E. ; Dept. of Electr. & Electron. Eng., Pretoria Univ., South Africa ; Linde, L.P.

This article describes the application of a dual-loop digital phase-locked loop (DPLL) in a Q2PSK modem for carrier recovery. The DPLL consists of an adaptive Kalman estimator which estimates the phase and frequency offsets of a received data bearing passband signal. The parameters of the Kalman estimator are updated by means of a recursive least squares (RLS) algorithm. The performance of this carrier recovery strategy is evaluated for some typical mobile channel carrier frequency offsets

Published in:

Africon, 1999 IEEE  (Volume:1 )

Date of Conference:

1999

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