Plural-differential, phase-shift-keyed modulation, communication

Pulse or digital communications – Repeaters – Testing

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375 84, H04L 2710

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053134931

ABSTRACT:
A plural-differential phase shift keying (PDPSK) communication system has a transmitter (22) for encoding digital data as plural differentials of phase between successive pairs of channel symbols of a carrier, and a receiver (24) with a plurality of phase differential detectors (32, 48) connected in cascade for determining the plural differentials of phase of the incoming signals to achieve a bit error rate independent of frequency offsets and thereby an improved rate of signal acquisition.

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