Adaptive phase detection method and apparatus

Details Adaptive phase detection method and apparatus Adaptive phase detection method and apparatus

1977-11-21

1979-02-06

Safourek, Benedict V.

328162, H04L 2722

Patent

active

041386442

ABSTRACT:
An adaptive phase detection method and apparatus is described which provides an estimated value .phi..sub.n of the phase .phi..sub.n transmitted at a signalling instant nT in a data transmission system using a M-phase PSK modulation technique. The system compensates for the effects of the intersymbol interference created by not more than one leading lobe of a succeeding signal and an arbitrary number of trailing lobes of preceding signals caused by the impulse response of the transmission channel. The method of the present invention mainly comprises the steps of:

REFERENCES:
patent: 4032847 (1977-06-01), Unkauf
patent: 4038540 (1977-07-01), Roberts
patent: 4041418 (1977-09-01), Koeth

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