Robust phase estimator and recoverer for digital signals affecte

Details Robust phase estimator and recoverer for digital signals affecte Robust phase estimator and recoverer for digital signals affecte

1997-03-28

1999-08-24

Chin, Stephen

Pulse or digital communications

Synchronizers

Phase displacement, slip or jitter correction

375371, 375332, 375344, H03D 324

Patent

active

059433809

ABSTRACT:
The invention relates to apparatus for synchronizing the phase of a digital signal constituted by two digital components to be corrected defining two samples of a received signal at each symbol time, said apparatus serving to feed a regenerator for regenerating the signal in baseband by sampling and threshold decision-taking, said apparatus including: a first phase-locked loop (31) driven by a first broadband phase-error integrator (37), said first loop (31) being fed with the input signal (30) of the apparatus, and supplying a first phase error estimate (36); and an auxiliary second phase-locked structure (32) driven by re-processing means (38) for re-processing said first phase error estimate (36) established by said first phase-locked loop (31), and outputting a phase synchronized signal fed to an output regenerator (34) for regenerating the signal in baseband; said auxiliary second phase-locked structure (32) being fed with said input signal (30) of the apparatus via delay means (35).

REFERENCES:
patent: 4328587 (1982-05-01), Mizuno et al.
patent: 4949357 (1990-08-01), Sehier
patent: 4953186 (1990-08-01), Levy et al.
patent: 5065107 (1991-11-01), Kumar et al.
patent: 5090025 (1992-02-01), Marshall et al.
patent: 5128968 (1992-07-01), Yoshida
patent: 5450447 (1995-09-01), Dutta
patent: 5579184 (1996-11-01), Nakanishi et al.

Affiliated with

Also associated with

Rating

Robust phase estimator and recoverer for digital signals affecte does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Robust phase estimator and recoverer for digital signals affecte, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Robust phase estimator and recoverer for digital signals affecte will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-473998