Research/Patents/US 4642641
US 4642641Tier 1 — UAP Program Assignee

VARIABLE PRF TARGET TRACKING RADAR

Assignee

Northrop

Filed as: NORTHROP GRUMMAN CORPORATION

Filed

Jul 29, 1976

Granted

Feb 10, 1987

Location

MD US

Abstract

A high PRF pulse doppler radar for tracking moving targets is described wherein the PRF of the transmitted signal is varied within predetermined PRF limits to keep the target reflected high PRF signal centered within the receive gate of the radar and wherein spurious signals incidentally generated by the action of the receive gate are reduced below the receiver noise level. In the event of temporary target reflected signal loss, the PRF of the transmitted signal is varied within predetermined PRF limits based upon the velocity and range estimate of the target to keep subsequent target reflected signals centered within the receive gate of the radar.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Jan 29, 1982

Rescinded

Jul 30, 1986

Duration

4 years, 6 months

Inventor

  • 1ROBERT R. CAMPBELL

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