8-phase phase-shift keying demodulator

Details 8-phase phase-shift keying demodulator 8-phase phase-shift keying demodulator

H - Electricity

03

D

329/3

H03D 3/18 (2006.01) H04L 27/01 (2006.01) H04L 27/227 (2006.01) H04L 27/00 (2006.01)

Patent

CA 1287383

NE-106 ABSTRACT In order to rapidly bring a 8-phase phase shift keying demodulator into resynchronization upon the demodulator going out of synchronism, a plurality of error signals produced within the demodulator is used to determine whether a signal point of an incoming 8-phase phase modulated signal is usable for controlling a transversal-filter. An asynchronism signal, which indicates whether the demodulator is synchronized, is derived from the demodulator and being applied to a tap gain control signal generator coupled to the transversal filter. The tap gain control signal generator is controlled when the asynchronism signal indicates asynchronism of the demodulator.

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