Carrier to noise ratio estimations from a received signal

Details Carrier to noise ratio estimations from a received signal Carrier to noise ratio estimations from a received signal

H - Electricity

04

B

H04B 17/00 (2006.01) G01R 29/26 (2006.01) H04L 27/22 (2006.01)

Patent

CA 2515167

Techniques for measuring the carrier to noise ratio (CNR) in a received digital signal are disclosed. The methods can operate on a received digital signal, such as a layered modulation signal used in a satellite television system. The CNR measurement can be made at the output of a carrier recovery loop or a timing recovery loop in a demodulator. Alternately, the CNR measurement can be made when the received signal is digitized in an analog to digital (A/D) converter at base-band by the demodulator.

L'invention concerne des techniques pour mesurer le rapport porteuse/bruit dans un signal numérique reçu. Les méthodes peuvent être appliquées à un signal numérique reçu, comme un signal de modulation en couches utilisé dans un système de télévision par satellite. La mesure du rapport porteuse/bruit peut être effectuée à la sortie d'une boucle de récupération de porteuse ou une boucle de récupération du rythme dans un démodulateur. Comme autre solution, la mesure du rapport porteuse/bruit peut être effectuée lorsque le signal reçu est numérisé en un convertisseur analogue-numérique (A/N) à la bande de base par le démodulateur.

Affiliated with

Also associated with

Rating

Carrier to noise ratio estimations from a received signal does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Carrier to noise ratio estimations from a received signal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Carrier to noise ratio estimations from a received signal will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1434534