MONOPULSE RADIO LOCATION SYSTEM Russian patent published in 2021 - IPC G01S13/44 

FIELD: radio location.

SUBSTANCE: invention relates to radio location systems (radars) used on mobile carriers, primarily on unmanned aerial vehicles (UAVs), and intended for detection and direction finding of objects for the purposes of tracking thereof by a monopulse method. The claimed monopulse radio location system comprises a transmitter, an antenna apparatus, a receiver, a digital matched sum channel filter with a sine and a cosine quadrature outputs and a modular output, a digital matched difference channel filter with a sine and a cosine quadrature outputs, as well as an executive detection unit and a valve unit. The system additionally includes a phase meter for the quadrature signal vector of the sum channel, a phase meter for the quadrature signal vector of the difference channel, a module meter for the quadrature signal vector of the difference channel, an optimal phase sensor, a shaper for the optimising rotation angle of the quadrature signal vectors of the sum and difference channels, a shaper for the optimal phase of the quadrature signal vector of the difference channel, a shaper for the optimal quadratures of the quadrature signal vector of the difference channel, a first and a second units for standardisation of the angular deviation estimates, an adder of the angular deviation estimates, a signal comparison unit, a threshold signal sensor, a flight plan sensor, a control signal multiplexer, an information signal multiplexer, and a pulse gate of the range discriminator.

EFFECT: increase in the accuracy of direction finding of the object at a low ration of signal to noise and in operation on broadband echo signals from rapidly maneuvering objects.

1 cl, 2 dwg