Research/Patents/US 6121914
US 6121914Tier 1 — UAP Program Assignee

SIDELOBE CANCELLER WITH CORRELATION SIGNAL WEIGHT SAMPLING DURING TRANSIENT

Assignee

Lockheed/Skunk Works

Filed as: LOCKHEED MARTIN CORPORATION

Filed

Jul 17, 1975

Granted

Sep 19, 2000

Location

Bethesda MD (defense contractors)

Abstract

An intermediate frequency sidelobe canceller of the kind including a cancellation loop and switch means for sampling and holding correlation weights present in the loop, affording enhanced cancellation and reduced loop lock-on time. This capability is achieved by provision of means for control of the sample-hold switch means so as to limit duration of the sampling interval to an optimum value substantially shorter than the loop stabilization time. Such shorter sampling interval may be either of fixed duration or adaptively controlled in response to one or more loop operating parameters.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Nov 3, 1981

Rescinded

Mar 15, 2000

Duration

18 years, 4 months

Inventor

  • 1ARTHUR A. CAVELOS

Sensitive facility: Bethesda MD (defense contractors)

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