RADIOLOCATION TARGET SIMULATOR Russian patent published in 2023 - IPC G01S7/40 G01S7/38 G09B9/40 

FIELD: radiolocation.

SUBSTANCE: invention relates to the field of radiolocation, namely to devices designed to simulate a spatial and time-frequency structure of radiolocation signals containing a combination of reflections from one or more targets, as well as signals reflected from an underlying surface. A receiving antenna and four transmitting antennas with a cross-shaped placement of their pairs, two in the horizontal plane and two in the vertical plane, and additional three parallel channels for generating radiated signals are introduced into the claimed simulator. Each transmitting antenna is powered by an output of the corresponding channel for generating the radiated signal. Transmitting antennas are installed at equal distances from a phase center of the receiving antenna of the radar under study, and, in simulated horizontal and vertical planes, – at distances corresponding to a size of an irradiation spot determined by an effective width of an antenna pattern of the radar under study. Pairs of transmitting antennas are located in vertical and horizontal planes. Parameters of signals generated in four parallel channels and signals emitted by four antennas are dynamically reconstructed by convolution of the observed modulation of a probing signal with calculated pulse characteristics of a scene in discrete positions of the radar, spaced in time by a repetition period of probing pulses of the radar.

EFFECT: simulation of a scene signal for mono-pulse coherent radars, providing both simulation of echo signals in “range-Doppler frequency” coordinates and an angular position of resolved elements of the scene in two planes with a random type of modulation of a probing radar signal.

1 cl, 6 dwg