Receiver for a phase-shift keyed carrier signal

Details Receiver for a phase-shift keyed carrier signal Receiver for a phase-shift keyed carrier signal

1988-06-01

1990-01-16

Safourek, Benedict V.

Pulse or digital communications

Repeaters

Testing

328164, 329110, H03D 322

Patent

active

048948454

ABSTRACT:
A receiver for a PSK-signal includes a demodulator for obtaining a demodulated data signal which after regeneration is applied to a remodulator for PKS-remodulation of the received PSK-signal to produce thereby a carrier component that is applied as an input signal to a phase-locked loop in which a local carrier generator is included. The reliability of the carrier recovery for low SNR-values can be improved by the generation of delayed and advanced versions of the regenerated data signal, and by providing the receiver in addition with a clock tracking unit, responsive to the received PSK-signal, the local carrier and the delayed and advanced data signal versions, for generating a control signal for a local clock generator connected to the regeneration means.

REFERENCES:
patent: 4592075 (1986-05-01), Tsukamoto
patent: 4757272 (1988-07-01), Okada et al.

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