| 摘要 |
FIELD: instrument making. ^ SUBSTANCE: invention relates to radars and can be used, for example, in contactless fuses, range and altitude pickups. Proposed device comprises frequency-modulation transceiver, channel to isolate n-th harmonic of Doppler frequency signal, channel to isolate (n+k)-th harmonic of Doppler frequency signal, integrator, amplitude comparator and actuating device. Said channel to isolate n-th harmonic of Doppler frequency signal is connected directly to first input of amplitude comparator. Proposed device incorporates also amplifier-limiter and pulse counter interconnected in a particular way. ^ EFFECT: higher accuracy of range locking and noise immunity. ^ 2 dwg |
