Phase tracking loop impairment monitor for modems

Details Phase tracking loop impairment monitor for modems Phase tracking loop impairment monitor for modems

1982-12-08

1985-08-06

Safourek, Benedict V.

Pulse or digital communications

Repeaters

Testing

327111, 375120, 331 17, H03L 708

Patent

active

045340366

ABSTRACT:
This invention provides a system which monitors the phase error signal generated by a phase tracking loop. The system includes a first circuit for averaging the phase error signal thus generating an uncorrected phase error, and a second signal for integrating the phase error to generate a corrected phase signal. The two generated signals are added together to yield a total phase error signal.

REFERENCES:
patent: 4424497 (1984-01-01), Fellinger
patent: 4442412 (1984-04-01), Smith et al.
patent: 4456890 (1984-06-01), Carickhoff
patent: 4465982 (1984-08-01), Jernakoff

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