DIGITAL PROCESSING UNIT OF RADAR SIGNALS Russian patent published in 2001 - IPC

FIELD: radiolocation, pulse Doppler radar systems. SUBSTANCE: technical objective of invention consists in expansion of functional capabilities thanks to identification of battle formation composed of not more than four aircraft flying in closed formation by " bearing-V- front " principle, in determination of its parameters ( interval, distance between aircraft in group ) and number of aircraft forming battle formation. Digital processing unit of radar signals has two phase detectors 1 and 2 whose inputs are tied up together and serve as input of this unit, two analog-to-digital converters 3 and 4, phase inverter 5, controllable heterodyne 6, Fourier fast transform unit 7, unit 8 identifying type of closed battle formation and determining its parameters for group of single aircraft, unit 9 identifying type of closed battle formation and determining its parameters for group of two aircraft, unit 10 identifying type of closed battle formation and determining its parameters for group of three aircraft, unit 11 identifying type of closed battle formation and determining its parameters for group of four aircraft, logic AND gate 12, four matrix digital comparators 13, 14, 15 and 16, nine matrixes of AND gates 17, 18, 19, 10, 21, 22, 23, 24 and 25, four matrix permanent storages 26, 27, 28 and 29, two matrixes of OR gates 30 and 31, selector 32 of minimal value, digital-to-analog converter 33, two light panels 34 and 35, unit 36 of light panels. EFFECT: expanded functional capabilities of proposed unit. 25 dwg _