A fuzzy logic filter for coherent detection in mobile communication receivers
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This paper proposes and demonstrates the use of a fuzzy logic filter for carrier phase synchronization in digital mobile communication receivers. The use of a priori knowledge of the dynamics of the phase in mobile fading channels allows the fuzzy filter to achieve fast phase tracking over Rician and Rayleigh flat-fading channels, as well as achieving quick acquisition. Additionally, a fuzzy CEMAC (Cerebellar Model Arithmetic Computer) architecture is proposed to increase the processing speed. The low computational requirements and the satisfactory performance of the proposed system, comparable or better than the Kalman filter for low SNR and low sampling rate, presents the fuzzy filter as a good alternative to other fading compensation techniques.
CitacióPerez, A., Lagunas, M., Jové, A., Artés, A. A fuzzy logic filter for coherent detection in mobile communication receivers. A: European Signal Processing Conference. "EUSIPCO 1998: Signal processing IX: theories and applications; proceedings of Eusipco-98, Ninth European Signal Processing Conference: Rhodes, Greece: 8-11 September 1998". Rhodes: 1998, p. 1601-1604.
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