METHOD AND SYSTEM FOR EVALUATING, ON RECEPTION, THE QUALITY OF A DIGITAL SIGNAL SUCH AS A DIGITAL AUDIO/VIDEO SIGNAL

摘要

The invention concerns a method and a system forassessing the quality of a broadcast digital signal.A reference signal (sref) is generated (1001) froman initial signal (so) and jointly broadcast (1002) with adigital signal (sn). At reception level, the broadcastdigital signal and reference signal received (snr, sref)are synchronised (2001) and a value D of the distancebetween the reference signal and the digital signal (snr,sref) is computed (2002) for assigning (2003) a qualityvalue Q. The invention is applicable to the broadcast ofaudio and/or video digital signals.