METHOD FOR REMOTE DETECTION OF SUBSTANCE Russian patent published in 2013 - IPC G01N24/08 G01S13/00 

FIELD: radio engineering, communication.

SUBSTANCE: device for implementing the method has a transmit antenna 1, a transmitter 2, a pulse generator 3, a synchroniser 4, receive antennae 5 and 13, receivers 6 and 14, a storage device 7, an analysed substance 8, a narcotic substance 9, an antenna unit 10, a time delay unit 11 (correlator 33), a switch 12, a mixer 15, a heterodyne 16, an intermediate frequency amplifier 17, a multiplier 18, a narrow-band filter 19, phase detectors 20 and 29, a comparator unit 21, a recording unit 22, a differentiator 23, a multiplier 24, a low-pass filter 25, an amplifier 26, a controlled delay unit 27, a range indicator 28, a motor 30, a reducing gear 31 and an azimuth indicator 32.

EFFECT: high accuracy of locating a narcotic substance by determining the azimuth and range, and automatic tracking of movement thereof using magnetic resonance, probing the location of the substance with a plane-polarised signal and receiving signals with right- and left-hand circular polarisation, phase analysis.

3 dwg