Research/Patents/US 4891647
US 4891647

METHOD AND A DEVICE FOR REDUCING THE POWER OF JAMMING SIGNALS RECEIVED BY THE SECONDARY LOBES OF A RANDOM FREQUENCY RADAR ANTENNA

Assignee

THOMSON-CSF

Filed

Jan 5, 1983

Granted

Jan 2, 1990

Location

PARIS FR

Abstract

A method and a device for reducing the power of jamming signals received by the secondary lobes of the main antenna AP of a radar transmitting at a random frequency fE (n), with which is associated a number of secondary antennas ASl, . . . ASN. The signals used for the calculation in circuit (10) of the weighting coefficients (Wl to WN) to be applied to obtain a signal resulting from the weighted linear combination of the secondary signals Dl, . . . DN to be subtracted from the signal Do in the main channel (VPD) relative to the transmission frequency fE (N+1) are those (V0, V1, . . . VN) processed in the main and secondary auxiliary channels (VPA, AsAl, . . . ASAN) relative to the transmission frequency fE (n+1) of the next recurrence train during the period of radar reception of the recurrence train corresponding to the transmission frequency fE (n) for the jammed range slots selected by circuit (15).

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Feb 2, 1988

Rescinded

Mar 2, 1989

Duration

1 year

Inventor

  • 1GERARD AUVRAY

Technology Domains

Click a domain to browse all patents in this category.

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