Process and device for detecting a carrier frequency error

Details Process and device for detecting a carrier frequency error Process and device for detecting a carrier frequency error

H - Electricity

03

D

H03D 3/00 (2006.01) H04L 27/233 (2006.01) H04L 27/00 (2006.01)

Patent

CA 2216661

To detect the frequency error of a carrier modulated in MDP-M phase, we reduce the phase ~(n) of samples to the interval [-.pi., +.pi.[; calculate ~(n) = mod(~(n), 2.pi./M); calculate d(n) = mod(~(n)-~(n-1), 2.pi./M); calculate p'(n) = mod(d(n)=p(n-1), 2.pi./M), where p(n) = mod(p*(n),2.pi./M), where p*(n) is obtained by subtracting from p'(n) the standard output; we calculate d'(n) = p'(n)-p(n-1); define a "tri" parameter, by tri = 1 if d'(n) < S and tri = .beta. if d'(n) ~S, where S is a threshold; calculate det_ -tri(n) = .alpha..p'(n).tri, det_tri(n) representing the standard output, representing the carrier frequency error.

Pour détecter l'erreur sur la fréquence d'une porteuse modulés en phase MDP-M, on ramène la phase ~(n) des échantillons à l'intervalle [-.pi., +.pi.[ ; on calcule ~(n) = mod(~(n),2.pi./M) ; on calcule d(n) = mod(~(n)-~(n-1),2.pi./M) ; on calcule p'(n) = mod(d(n)=p(n-1),2.pi./M), où p(n) = mod(p*(n),2.pi./M), où p*(n) est obtenu en retranchant de p'(n) la sortie courante ; one calcule d'(n)=p'(n)-p(n-1) ; on définit un paramètre "tri", par tri = 1 si ¦d'(n)¦ < S et tri = .beta. si ¦ d'(n)¦ ~ S, où S est un seuil ; on calcule det_-tri(n) = .alpha..p'(n).tri, det_tri(n) constituant la sortie courante, représentative de l'erreur sur la fréquence de la porteuse.

Affiliated with

Also associated with

Rating

Process and device for detecting a carrier frequency error does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process and device for detecting a carrier frequency error, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process and device for detecting a carrier frequency error will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1373025