Title :
DFT-based frequency acquisition algorithm for large carrier offsets in mobile satellite receivers
Author :
Nezami, M.K. ; Sudhakar, R. ; Helmken, H.
Author_Institution :
Dept. of Electr. Eng., Florida Atlantic Univ., Boca Raton, FL, USA
fDate :
3/15/2001 12:00:00 AM
Abstract :
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
Keywords :
automatic frequency control; discrete Fourier transforms; feedforward; mobile satellite communication; satellite tracking; DFT-based frequency acquisition algorithm; automatic frequency control; carrier offsets; coarse acquisition; digital satellite receivers; discrete complex Fourier transform; feed forward estimator; fine tracking; mobile satellite receivers;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20010267
