| 摘要 |
FIELD: radar engineering. ^ SUBSTANCE: proposed device designed for identifying objects incorporating revolving components (helicopters, propeller-driven airplanes) by means of acquisition radars at relatively low repetition frequency of sounding pulses (about 2000 Hz) and low time of contact with target (tens of ms) in intensive interference environment functions to separate heterogeneous part in received signal that characterizes time of hitting window occupied by pulse burst being identified with main maximum of secondary radiation diagram of revolving components by adequate processing of pulse burst in frequency and time domains thereby enabling object identification. Device has analog-to-digital converter 1, digital computing units 2/1 - 2N, random-access memory 3, comparison unit 7, control unit 8, multiplexer 4, ranking unit 5, calculating unit 6, and inverter 9. Each digital computing unit has squarer 13, multiplier 10, adder 11, read-only memory 14, and shift register 12. Control unit has clock generator 15, pulse counters 16/1 - 16/3, and AND gate 17. ^ EFFECT: enhanced effectiveness of object identification. ^ 1 cl, 4 dwg |
