FIELD: reception of information of object's motion. SUBSTANCE: Doppler system has low frequency generator 1, modulator 2, microwave oscillator 3, mixer 4, video amplifier 5, envelope detector 6, low frequency amplifier 7, threshold unit 8, filtering unit 9, actuating unit 10, transmitting aerial 12, receiving aerial 13, short-range communication channel 14. EFFECT: improved truth of information. 2 cl, 2 dwg
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Authors
Dates
1994-03-15—Published
1991-04-08—Filed