FIELD: physics.
SUBSTANCE: proposed device represents adaptive system to allow optimising antenna phase reception of acoustic signals in Fresnel range. For this, proposed device comprises multi-component cylindrical antenna with N receiving channels. It differs from known designs in that it incorporates additionally HF signal generator and HF radiator and allows every preamplifier to switch over to frequency multiplexer mode. Said distinctive features allow heterodyning received useful HF signal and optimising antenna phase reception of acoustic signals with curved wavefront.
EFFECT: efficient and faster search.
5 cl, 2 dwg
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