THREE-DIMENSIONAL HOLOGRAPHIC RADIO-CAMERA IMAGING SYSTEM FOR EXAMINATION Russian patent published in 2018 - IPC G01S13/89 

FIELD: image forming devices; radar and radio navigation.

SUBSTANCE: using for the detection of weapons and explosives. Clue of the invention lies in the fact that 3D system of holographic radio vision for screening, based on the use of short-range radar, contains a PC, a multifunctional digital receiver based on MC, a modulating voltage amplifier, a VCO, a microwave unit, a inspection frame with transmit-receive antennas and a switching unit, a block of amplifiers and a beat signal filter with the following connections: a multifunction digital receiver with a first output via a modulating voltage amplifier and a voltage controlled oscillator – a VCO, and through the microwave unit is connected to the transmission antenna unit, and its second output is connected to the control input of the microwave switch, the outputs of which are connected to the control inputs of the receiving antenna units and the transmission antenna unit, and the output of the receiving antenna unit through the microwave unit is connected to the mixer, amplifier and beat filter unit, and the multifunction receiver controller of the bidirectional communication bus through the communication channel is connected to a PC which output is connected to a PC monitor; the antenna part of the system is a square frame of a flat structure, each side of it – a ruler of 20 antenna cells horizontally – transmitting, vertically – receiving, or vice versa, and as each element in the antenna cells a helical antenna is used, that is made on a printed conductor, the spread of the elements – the antenna cells in the rulers – lies within the half wavelength.

EFFECT: increase the resolution of the system and the reliability of the results obtained at a high scan speed and build a 3D image, and increase the depth of sounding and ensure high noise immunity.

1 cl, 3 dwg