Synchronizing signal generator

Oscillators – Automatic frequency stabilization using a phase or frequency... – Search sweep of oscillator

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325473, 331 12, H03B 304

Patent

active

041575148

ABSTRACT:
An incoming signal including the object signal and plurality of noise signals dispersed about the object signal is fully masked with white noise and applied to a phase synchronization loop wide in loop band width and including a local oscillator repeatedly swept by a sweep generator. During the repeated sweep a control signal generator successively decreases the level of the white noise until the oscillator is locked in the phase of the object signal. At that time the signal control generator is operated to suspend the sweeping operation and prevent the white noise from being added to the incoming signal.

REFERENCES:
"The Initial Acquisition Unit of the TDMA-System," Third Internal Confer. on Dig. Sat. Comm. 1975, pp. 301-307, Reidel, et al.

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