Scan method of human body security system utilizing frequency division technology

A technology of human body security inspection and scanning method, which is applied in the direction of using re-radiation, radio wave measurement system, radio wave reflection/re-radiation, etc. The effect of radiation interference, improving security inspection efficiency, and improving resolution

Inactive Publication Date: 2012-03-28
BEIJING INST OF RADIO METROLOGY & MEASUREMENT
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] However, the existing security inspection systems are all single-switch antenna arrays. Using a single switch array antenna to s

Method used

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  • Scan method of human body security system utilizing frequency division technology
  • Scan method of human body security system utilizing frequency division technology
  • Scan method of human body security system utilizing frequency division technology

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Embodiment Construction

[0065] The technical solutions of the present invention will be described in detail below with reference to the accompanying drawings and with the help of embodiments of the present invention. It should be understood that the components shown in the drawings are schematic and not restrictive, and the features are not drawn to scale. In the respective device drawings, the same reference numerals denote the same components.

[0066] like figure 1 and 2 As shown, the human body security inspection system for millimeter-wave active three-dimensional holographic imaging of the present invention includes a cylindrical main body frame 1, a control computer 13, a control device 4, a first millimeter-wave transceiver 2 and a second millimeter-wave transceiver 3, and a second millimeter-wave transceiver 3. A first millimeter-wave switch antenna array 7 connected to a millimeter-wave transceiver 2, a second millimeter-wave switch antenna array 8 connected to a second millimeter-wave tr...

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Abstract

The invention discloses a scan method of a human security system utilizing frequency division technology to avoid opposite radiation interference. The method comprises that in a scan period, at a same time, work frequency of detection signals which are provided by a first millimeter wave transceiver and a second millimeter wave transceiver are different. According to the invention, opposite radiation interference of two sides switch antenna arrays of a millimeter wave active three-dimensional holographic imaging human body security system is avoided, and an imaging sharpness level is raised.

Description

technical field [0001] The invention relates to a human body security inspection system. More specifically, the present invention relates to a human body security inspection system and scanning method based on three-dimensional holographic imaging of millimeter-wave active high-speed cylindrical rotation scanning. Background technique [0002] The urgency of international anti-terrorism has put forward many new demands on human body security inspection. First, it is necessary to be able to realize the non-undressing three-dimensional holographic imaging detection of objects covered by human clothing, so as to improve the efficiency of identifying suspicious objects; second, it is necessary to expand detection capabilities. , can detect metal and non-metal items, including guns, knives, explosives, drugs, CDs, cash, liquids, chips, ceramics, etc.; third, it is necessary to reduce the impact of detection methods on human health on the basis of ensuring the above requirements ...

Claims

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Application Information

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IPC IPC(8): G01V9/00G01S13/89G01S7/02
Inventor 年丰温鑫张冰方维海王暖让杨于杰冯克明
Owner BEIJING INST OF RADIO METROLOGY & MEASUREMENT
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