RADAR TECHNIQUE FOR DETERMINING ANGULAR POSITION OF TARGET AND DEVICE FOR REALISING SAID METHOD Russian patent published in 2010 - IPC G01S3/72 

FIELD: physics.

SUBSTANCE: transmitting ground position forms N partial beams at frequencies which differ from each other by a value greater than the maximum value of the Doppler frequency of the signal reflected from the target. One "wide" beam, forward signals of partial beams and signals reflected from the target are formed at the receiving position and then filtered, each in its own channel in accordance with the frequency of the emitted partial beams. The Doppler frequency of the received signals is determined. The direction of arrival of a signal from the transmitting position to the target is then determined using a mono-pulse method from the ratio of the amplitude of signals in receiving partial channels at the same reduced Doppler frequency in accordance with the direction-finding characteristic of the transmitting antenna. The device which realises the method consists of a ground transmitting position comprising a transmitter and a transmitting antenna, and a receiving position on a mother space vehicle and consisting of a receiving antenna, N band-pass filters, N receivers, N devices for rejecting the forward signal of the transmitter and clutter, N units for determining Doppler frequency, a unit for determining bearing, all connected in a certain way.

EFFECT: unambiguous and accurate determination of angular coordinates of a target.

2 cl, 3 dwg