Method and system for evaluating, on reception, the quality...

Details Method and system for evaluating, on reception, the quality... Method and system for evaluating, on reception, the quality...

H - Electricity

04

L

H04L 1/20 (2006.01)

Patent

CA 2305983

The invention concerns a method and a system for assessing the quality of a broadcast digital signal. A reference signal (sref) is generated (1001) from an initial signal (so) and jointly broadcast (1002) with a digital signal (sn). At reception level, the broadcast digital signal and reference signal received (snr, sref) are synchronised (2001) and a value D of the distance between the reference signal and the digital signal (snr, sref) is computed (2002) for assigning (2003) a quality value Q. The invention is applicable to the broadcast of audio and/or video digital signals.

L'invention concerne un procédé et un système d'évaluation de la qualité d'un signal numérique diffusé. Un signal de référence (sref) est engendré (1001) à partir d'un signal d'origine (so) et diffusé conjointement (1002) avec le signal numérique (sn). A la réception, le signal numérique et le signal de référence diffusés reçus (snr, sref) sont synchronisés (2001) et une valeur de distance D est calculée (2002) entre signal de référence et signal numérique (snr, srefr) pour attribuer (2003) une valeur de qualité Q. Application à la diffusion de signaux audio et/ou vidéo numériques.

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