Method and system for assessing, at reception level, the quality of a digital signal, such as a digital audio/video signal

摘要

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 synchronized (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.