Research/Patents/US 5379043
US 5379043

REPLY-FREQUENCY INTERFERENCE/JAMMING DETECTOR

Assignee

Filed

Sep 26, 1975

Granted

Jan 3, 1995

Location

MD US

Abstract

Received IFF reply-frequency signals are examined to determine whether theyre being interfered with by enemy sources, and indication of the extent of detected interference is provided. The number of correct replies received from selected range bins surrounding and including the center one in which a target leading edge is first declared is counted and compared with the count of the number of friend-accept decisions made based on replies from the selected range bins. The level of interference is then indicated by the ratio between the two counts.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Oct 28, 1981

Rescinded

Jul 29, 1994

Duration

12 years, 9 months

Inventor

  • 1WALTON B. BISHOP

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