Electronic counter measure system

• Main Authors: BLANK, DAVID, RAYBEE, ARYE, MANELA, REUEL, KANTER, ERAN
• Format: Patent
• Language: English; French; German
• Published: 04.12.2013
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING

A tactical electronic counter measure system comprising: a first retro-directional transceiver sub-system, receiving signals at a first frequency band, said first retro-directional transceiver sub-system re-transmitting a signal at least substantially toward the direction from which the source signal was received, said first retro-directional transceiver sub-system including: a plurality of antennas; and a plurality of transceiver modules, at least one of said transceiver modules being defined as a reference transceiver module, said reference transceiver module includes: a receiver, coupled with a respective one of said antennas, said receiver receiving a source signal from said respective one of said antennas; and an amplifier, coupled with said respective one antenna, said amplifier receiving an intermediate signal, said amplifier amplifying said intermediate signal and providing said amplified phase shifted signal to said respective one antenna; each one of the other transceiver modules include: a receiver, to be coupled with one antenna other than said respective antenna, said receiver receiving a source signal from said at least one antenna; a phase-shifter for shifting the phase of said intermediate signal by a corresponding phase shift; and an amplifier, coupled with said respective one antenna and with said phase-shifter, said amplifier receiving a phase shifted signal from said phase-shifter, said amplifier amplifying said phase shifted signal and providing said amplified phase shifted signal to said respective one antenna; a signal source generator, coupled with the receiver of said reference transceiver module, with the phase-shifter respective of said other transceiver modules and with the amplifier respective of said reference transceiver module, said signal source generator receiving the received signal respective of the receiver of said reference transceiver module, said signal source generator generating said intermediate signal according to said received signal; and a relative phase determinator, coupled with each one of the receivers, and with each one of said phase-shifters, said relative phase determinator detecting the relative phase between said receiver of said reference transceiver module and each of the remaining ones of said receivers, said relative phase determinator further determines a phase shift associated with each of said phase-shifters and provides this determined phase shift to each of said phase-shifters, wherein, each one of at least two of said antennas transmits the respective amplified signal, thereby said antennas producing a retransmitted signal; and a controller, coupled with said first retro-directional transceiver sub-system, said controller controlling the activity of said first retro-directional transceiver sub-system, said controller further managing the tasks of said first retro-directional transceiver sub-system, said tasks at least including emitter acquisition.