Method and device for estimating the carrier frequency of a modu

Details Method and device for estimating the carrier frequency of a modu Method and device for estimating the carrier frequency of a modu

1991-12-19

1994-03-29

Kuntz, Curtis

Pulse or digital communications

Repeaters

Testing

375 83, 329306, H04L 2722

Patent

active

052992314

ABSTRACT:
A method of estimating the carrier frequency of a numeric signal, in which two estimates of the carrier phase are carried out in successive instants of time and the estimated carrier frequency is obtained from the comparison of the above two estimates. The invention also concerns a device for implementing the method, the device including a circuit for estimating the phase of the signal at successive instants in time, a circuit for storing the estimates, and a circuit for comparing the estimates. In a preferred embodiment, both the phase estimator and the comparison circuit are implemented by multipliers and adders.

REFERENCES:
patent: 4328587 (1982-05-01), Mizuno et al.
patent: 4611165 (1986-09-01), Nussbaum
patent: 4712221 (1987-12-01), Pearce et al.
patent: 4761604 (1988-08-01), Engelson et al.
patent: 4904930 (1990-02-01), Nicholas
patent: 4951219 (1990-08-01), Zimmer
patent: 4958360 (1990-09-01), Sari
patent: 4977580 (1990-12-01), McNicol
patent: 5019823 (1991-05-01), Bream et al.
patent: 5049830 (1991-09-01), Yoshida

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