Narrow band automatic phase control tracking circuitry

Details Narrow band automatic phase control tracking circuitry Narrow band automatic phase control tracking circuitry

1973-12-03

1991-07-23

Tubbesing, T. H.

Communications: directive radio wave systems and devices (e.g.,

Return signal controls radar system

Receiver

342103, G01S 735

Patent

active

050347489

ABSTRACT:
The invention disclosed herein relates in general to an improved circuitry or narrow band frequency tracking system for doppler radar and includes third order phase lock loop circuitry to improve tracking techniques. This enables tracking input frequency variations caused by target maneuvers with substantially smaller tracking bandwidths than is currently possible.

REFERENCES:
patent: 3295127 (1966-12-01), Kross
patent: 3935572 (1976-01-01), Broniwitz et al.
patent: 4788547 (1988-11-01), Jones et al.

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