Research/Patents/US 5351058
US 5351058

GENERAL PURPOSE SIDELOBE CANCELLER SYSTEM

Assignee

Filed

Mar 26, 1979

Granted

Sep 27, 1994

Location

MD US

Abstract

A digital, open-loop, sidelobe canceller system includes an arrangement ofuxiliary-channel preprocessing cancellers and a series of main-channel cancellers in which specific cancellers average a different number of samples for cancelling both barrage (continuous) jamming and false-target-repeater jamming, which enter the sidelobes of a radar antenna. The preprocessing cancellers and each of the main-channel cancellers, except the last succeeding main-channel canceller, use long-time averaging (averaging over a large number, n, of samples of the main and auxiliary signals, where n>>2) for removing barrage jamming from the main signal. The last succeeding main-channel canceller uses short-time averaging (averaging over approximately 2-4 samples) for removing false-target-repeater jamming from the main signal.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Jul 14, 1982

Rescinded

Feb 22, 1994

Duration

11 years, 7 months

Inventor

  • 1FRANK F. KRETSCHMER

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