DEVICE FOR DETERMINATION OF PARAMETERS OF TARGET MOTION Russian patent published in 2001 - IPC

FIELD: radio detection and range finding, in particular, methods for recovery of target trajectory in spaced radar tracking. SUBSTANCE: the device taken as a prototype has a transmitting position and a receiving position being in a point that is remote from it, consisting of an antenna connected to the receiving device having N partial channels containing receivers, whose outputs are connected to the respective inputs of the Doppler frequency measuring unit and of the interference signal arrival direction measuring unit, unit for extrapolation of the measured parameters, unit for computation of the time moment of intersection of the base line by the target, and a unit for determining the position surface, whose output is connected to one of the inputs of the trajectory parameters computing unit, the other input of the trajectory parameters computing unit is connected to the output of the unit for measurement the direction of arrival of interference signal, and the output serves as the output of the whole device, one of the inputs of the unit for extrapolation of the measured parameters is connected to the output of the unit for measurement of the direction of arrival of the interference signal, and the output - to the input of the computing unit of the time moment of inter-section of the base line by the target, and to one of the inputs of the unit for determining the position surface, whose other input is connected to the output of the computing unit of the time moment of intersection of the base line by the target, the central partial channel comprises the reference voltage division unit, whose input serves as one of the inputs of the receiving device, and one of the outputs is connected directly to the respective receiver. The other N-I partial channels comprise summers, whose one of the inputs serves as the input of the receiving device, and the other is connected to the respective input of the reference voltage division unit. The output of each summer is connected to the respective receiver. Besides, the device comprises a unit for identification of signals by frequency and subtraction of false signals, whose input is connected to the output of the Doppler frequency measuring unit, and the output - to one of the inputs of the unit for extrapolation of measured parameters. EFFECT: enhanced accuracy of determination of the bearing in case of expansion of the bearing zone due to the increase of the number of partial channels. 1 dwg