Research/Patents/US 5034748
US 5034748

AN IMPROVED NARROW BAND AUTOMATIC PHASE CONTROL TRACKING CIRCUITRY

Assignee

Filed

Dec 3, 1973

Granted

Jul 23, 1991

Location

IL US

Abstract

The invention disclosed herein relates in general to an improved circuitryor 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.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Nov 5, 1981

Rescinded

Mar 13, 1991

Duration

9 years, 4 months

Inventor

  • 1RICHARD CHARLES GOEDEKE

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Back to patent indexSource: USPTO 35 USC §181 secrecy order records