DEVICE FOR DETERMINING DEPTH OF SUBSURFACE OBJECTS Russian patent published in 2015 - IPC G01V3/17 

FIELD: radio engineering, communication.

SUBSTANCE: device includes main (1) and additional (7) antennae, a transmitter, a receiver, a communication adapter (22), an information processing unit (23) and a control and synchronisation unit (24). The transmitter includes a power amplifier (2), a directional coupler (3), a modulated stage (4), a modulator (5) and a drive generator (6). The receiver includes an integrated radiometric detector, a low-noise amplifier (8), a switch (9), a mixer (10), a bandpass filter (11) and a beat frequency amplifier (12). The radiometric detector is in the form of three parallel-connected circuits, each comprising series-connected bandpass filter (13-15), quadratic detector (16-18) and low-pass filter (19-21).

EFFECT: high accuracy of determining the depth of objects concealed in the ground.

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