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DFT-based frequency acquisition algorithm for large carrier offsets in mobile satellite receivers

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3 Author(s)
M. K. Nezami ; Dept. of Electr. Eng., Florida Atlantic Univ., Boca Raton, FL, USA ; R. Sudhakar ; H. Helmken

A new automatic frequency control (AFC) algorithm suitable for digital satellite receivers to counter-act large carrier offsets is presented. The proposed two-step scheme uses a low-resolution discrete complex Fourier transform (DFT) for coarse acquisition and a conventional feed forward (FF) estimator for fine tracking. Results from computer simulations are provided to demonstrate the capability of the algorithm

Published in:

Electronics Letters  (Volume:37 ,  Issue: 6 )