Tracking loop having instantaneous frequency shift protection

Details Tracking loop having instantaneous frequency shift protection Tracking loop having instantaneous frequency shift protection

1996-07-25

1998-04-21

Mis, David

Oscillators

Automatic frequency stabilization using a phase or frequency...

Plural a.f.s. for a single oscillator

331 17, 331 25, 327156, 455260, H03L 7087

Patent

active

057422079

ABSTRACT:
A system for processing signals by utilizing a tracking loop that contains two or more detectors that operate simultaneously in order to detect a frequency shift in the locally generated reference signal. A correction can then be transmitted to the tracking loop filter to minimize the effect of the detected frequency shift. In this manner lock can be maintained without the expenditures associated with the use of temperature controlled or compensated oscillators.

REFERENCES:
patent: 5444420 (1995-08-01), Wernlund

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