Research/Patents/US 4935743
US 4935743

ANTI-JAMMING APPARATUS AND METHOD FOR A RADAR SYSTEM

Assignee

THOMSON-CSF

Filed

Oct 24, 1984

Granted

Jun 19, 1990

Location

SCEAUX FR

Abstract

Anti-jamming apparatus and method for a radar system having a main antenna utilizes a single electronic-scan auxiliary antenna having a plurality of radiating elements each coupled to appropriate phase shift means. The auxiliary antenna is successively sighted in directions of each of a plurality of jammers. First and second receiving chains respectively coupled to the main and auxiliary antennas supplies a processor with components of the signals received by the antennas. The computer supplies control signals to control the sighting of the auxiliary antenna so that it radiates in the direction of each jammer maximum radiation values, the components of which are those of the field radiated by the main antenna in the direction of the sighted jammer. The processor also provides an output signal comprising a vectorial combination of the signals received by the main and auxiliary antennas. The auxiliary antenna is thus successively used as an auxiliary adjusting antenna, and then used as an anti-jamming antenna.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Mar 11, 1986

Rescinded

Jul 31, 1989

Duration

3 years, 4 months

Inventor

  • 1ROBERT GUILHEM

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