METHOD OF AND DEVICE FOR ACTIVE RADAR INTERROGATION-RESPONSE Russian patent published in 1995 - IPC

FIELD: radar. SUBSTANCE: radar interrogation-response method involving reception of return signal over two channels simultaneously ensures K fold power reduction for time corresponding to range equal to , where is maximum detection range; ζ is dynamic range of return signals; simultaneously threshold is changed 1/γ times at constant value of k/γ within entire period of signal reception during interrogation. Device implementing this method has transmitter 1, circulators 2, 11, dual-channel antenna 3, sum-difference bridges 4, 12, receiver 5, amplitude detectors 6, 7, threshold units 8, 9, decoders 10, 19, detector 13, controlled divider 14, control unit 15, logarithmic analog-to-code converters 16, 17, adder 18, OR gate 20, digital delay unit 21, switch 22. EFFECT: improved power reduction in main channel, improved probability of responder detection. 2 cl, 1 dwg