Carrier recovery method for modulation having a large number of

Details Carrier recovery method for modulation having a large number of Carrier recovery method for modulation having a large number of

1991-04-22

1993-04-13

Chin, Stephen

Pulse or digital communications

Repeaters

Testing

375 78, H04L 2706

Patent

active

052029026

ABSTRACT:
A method of recovering the carrier for modulation having a large number of states, the method being wherein the demodulated constellation is brought to the monotonic range of a conventional estimator, with sufficient accuracy to enable autonomous operation on this new criterion. The invention also provides apparatus for implementing the method. The invention is particularly applicable to digital ratio beam transmission.

REFERENCES:
patent: 4835790 (1989-05-01), Yoshida et al.
patent: 4847872 (1989-07-01), Hespelt et al.
patent: 5042052 (1991-08-01), Roberts et al.

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