CARRIER RECOVERY METHOD FOR MODULATION HAVING A LARGE NUMBER OF STATES, AND APPARATUS FOR IMPLEMENTING THE METHOD

摘要

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.