Pulse repetition frequency tracker

Details Pulse repetition frequency tracker Pulse repetition frequency tracker

1970-01-21

1979-10-02

Hubler, Malcolm F.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

328109, 307233R, H03K 117, H03K 520

Patent

active

041699955

ABSTRACT:
The repetition frequency tracking apparatus utilizes the input signal to start a timer to provide the correct phase. When the timer sweeps through the right frequency, the tracker will lock to a single pulse train within a two octave frequency spectrum. After the lockup, the tracker is switched to a free running mode to provide pseudo synchronous running through durations of missing input pulses. Accurate tracking is provided by the use of an early late gate phase discriminator for phase sensing and correcting to zero, errors at all locking frequencies.

REFERENCES:
patent: 3007044 (1961-10-01), Cookson
patent: 3484704 (1969-12-01), Hungerford
patent: 3550017 (1970-12-01), Whalen

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