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| HAL : hal-00447410, version 1 |
| DOI : 10.1016/j.sigpro.2009.08.012 |
| Fiche détaillée |  Récupérer au format |
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| Signal Processing 90, 3 (2010) 821-833 |
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| Oversampled phase tracking in digital communications with large excess bandwidth |
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| Jordi Vilà Valls 1Jean-Marc Brossier 1 |
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| (03/2010) |
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| This paper deals with the on-line carrier phase estimation in a digital receiver. We consider a Brownian phase evolution in a Data Aided scenario. The proposed study uses an oversampled signal model after matched ltering, leading to a coloured reception noise and a non-stationary power signal. The contribution of this paper is twofold. First, we derive the Bayesian Cramér-Rao Bound for this estimation problem. Then, based on a state-space model formulation of the problem, we propose an Extended Kalman Filter to approach this lower bound for a BOC shaping pulse. Our numerical results illustrate the gain resulting from the use of an oversampled version of the received signal to estimate the phase oset, obtaining better performances than using a classical synchronizer. |
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| 1 : | Grenoble Images Parole Signal Automatique (GIPSA-lab) |
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CNRS : UMR5216 – Université Joseph Fourier - Grenoble I – Université Pierre-Mendès-France - Grenoble II – Université Stendhal - Grenoble III – Institut Polytechnique de Grenoble - Grenoble Institute of Technology |
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| Domaine | : | Sciences de l'ingénieur/Traitement du signal et de l'image Informatique/Traitement du signal et de l'image |
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| Phase estimation – BCRB – Extended Kalman Filter – oversampling – carrier synchronization – GALILEO – BOC. |
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| Liste des fichiers attachés à ce document : | |||||
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| hal-00447410, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00447410 | |
| oai:hal.archives-ouvertes.fr:hal-00447410 | |
| Contributeur : Laurent Ros | |
| Soumis le : Jeudi 14 Janvier 2010, 18:40:29 | |
| Dernière modification le : Mardi 28 Juin 2011, 16:15:34 | |
