NOISE SIGNAL TRANSMITTING SYSTEM

摘要

PROBLEM TO BE SOLVED: To transmit a barrage signal without the deviation of a beam directional angle and to transmit an effective spot signal improving the reception noise level of an opposite radar. SOLUTION: A phased array antenna having a transmitter 1 generating plural transmission signals having different frequencies, a phase controller 2 controlling a phase when the transmission signal is radiated to space, a beam forming circuit 3 distributing plural frequency signals from the transmitter and forming beams based on plural pieces of phase data from the phase controller and an element antenna 4 radiating the beams to space is installed. The opening face of the phased array antenna is divided into plural parts. The frequencies and the phases of the signals supplied to the divided opening faces are independently and respectively controlled and a noise signal is transmitted from the phased array antenna.