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Theses

Architecture configurable d'une boucle à verrouillage de phase totalement numérique : application à la mesure de gigue et de la dérive en fréquence en télévision numérique

Abstract : In digital television, the information are transmitted in asynchronous mode within frames. Frequency dispersions or the jitter of the transmitted signal can have a significant effect on reception quality. The work of the thesis presented relates to the study and the characterization of an All-Digital Phase Locked Loop (ADPLL) associated to a set of measurement functions of dispersions and jitter. The designed ADPLL allows the clock recovery by synchronisation on time stamps. The implementation is made possible thanks to the use of an original frequency synthesizer based on a technique of delaying or advancing the phase. The solution is used in a measurement system of jitter, frequency error and drift parameters for the quality of service evaluation in digital terrestrial television (DVB-T). The system is optimised in term of resources to measure the parameters of each program of a DVB-T stream.
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https://hal.univ-lorraine.fr/tel-01747392
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SCD_T_2006_0171_MANNINO.pdf
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  • HAL Id : tel-01747392, version 1

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Christian Mannino. Architecture configurable d'une boucle à verrouillage de phase totalement numérique : application à la mesure de gigue et de la dérive en fréquence en télévision numérique. Ordinateur et société [cs.CY]. Université Henri Poincaré - Nancy 1, 2006. Français. ⟨NNT : 2006NAN10171⟩. ⟨tel-01747392⟩

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