MOBILE GROUND TWO COORDINATE RADAR STATION OF CIRCULAR SCAN IN METER BAND

摘要

This invention pertains to radar systems and can be used for the detection and position measurement of airborne targets and target designation in terms of range and azimuth. The proposed invention expands the arsenal of the metric-waveband (VHF) 2-D surveillance radars and permits of the consumer interest in these radars to be raised, which is achieved through an integrated approach to implementation of functional and structural components, namely a frequency agile transmitter-receiver subsystem comprising a solid-state transmitter (1), waveform shapers (2) and (3), and a primary-channel receiver (4); a primary radar antenna (5) with an orientation sensor; a noise jamming cancellation subsystem including a jamming cancellation antenna (6), a cancellation channel receiver (7), and a jamming canceller (8); a primary signal processing subsystem consisting of a far-zone signal detector (9) and a near-zone signal detector (10), a switching multiplexer (11), a primary antenna sidelobe blanker (12), a jammer direction-finder (14), and a coordinate measuring unit (13); a secondary processing and interface subsystem (16); and an operator position comprising display, control and test facilities (15) with the necessary interconnections. The radar equipment is accommodated in the cabin of a vehicle, which is divided by a noise-absorbing wall with a door into a crew compartment containing the operator position with display, control and test facilities (15) and the secondary processing and interface subsystem (16), and an equipment room containing an equipment cabinet with the transmitter-receiver subsystem (1-4), the primary processing subsystem (9-14), the cancellation channel receiver (7), and the jamming canceller (8); a cooler-based combined extract-and-input system mounted under the cabin provides cooling for the equipment inside the cabinet and air conditioning for the crew compartment. The solid-state transmitter (1) of the transmitter-receiver subsystem contains a large number (over ten) of sealed power-amplifier modules, whose outputs are summed up. The jamming cancellation antenna is a stationary structure and comprises four radiators mounted in pairs at right angle in the horizontal plane on two masts positioned on the opposite sides of the primary radar antenna so that the angle between any two radiators in the horizontal plane is 90 degree.