Title:
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Adaptive blind equalization and demodulation without channel and signal parameter extraction
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Author:
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Sala Álvarez, José; Vázquez Grau, Gregorio
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Other authors:
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Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. SPCOM - Grup de Recerca de Processament del Senyal i Comunicacions |
Abstract:
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The problem of filtering a source of known statistics in noise and/or interference of unknown statistics is addressed in this paper. In a general framework, the optimum estimation (detection) of the desired signal requires perfect knowledge of the probability density functions of the interfering signal and usually leads to complex non-linear algorithms. Herein we have restricted ourselves to linear estimators and optimize performance within this subset according to a criterion derived from information-theoretic considerations. For validation purposes, the particular application of blind data demodulation has been considered. Synchronisation, carrier phase rotation and equalization are performed with the same algorithm to force a source of a known pdf at the output of the adaptive system. Performance at low SNR is derived through simulations. |
Abstract:
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Peer Reviewed |
Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació -Signal processing -Tractament del senyal |
Rights:
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http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
Document type:
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Article - Published version Conference Object |
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