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Ellipsoidal channel structure suitable for passive millimeter wave three-dimensional imaging security inspection

A technology of three-dimensional imaging and channel structure, which is used in geological exploration using millimeter waves, optical-based geological exploration, reflection/re-radiation of radio waves, etc. Achieve the effect of good privacy protection and high spatial resolution

Active Publication Date: 2021-07-09
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the lack of distance information, it is impossible to accurately detect the precise detection of objects that the human body may carry

Method used

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  • Ellipsoidal channel structure suitable for passive millimeter wave three-dimensional imaging security inspection
  • Ellipsoidal channel structure suitable for passive millimeter wave three-dimensional imaging security inspection
  • Ellipsoidal channel structure suitable for passive millimeter wave three-dimensional imaging security inspection

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Embodiment Construction

[0029] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure will be more thoroughly understood, and will fully convey the scope of the present disclosure to those skilled in the art.

[0030] like figure 1 As shown, an ellipsoid channel structure suitable for passive millimeter wave three-dimensional imaging security inspection of the present invention includes an ellipsoid channel 1, a wave-transmitting ground 2, an antenna unit 3, and a conformal antenna array 4; wherein, the ellipsoid body Channel 1 is an ellipsoid structure with openings on both sides for pedestrians to pass. The ellipsoid is obtained...

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Abstract

The invention discloses an ellipsoidal channel structure suitable for passive millimeter wave three-dimensional imaging security inspection. The ellipsoidal channel structure comprises an ellipsoid channel with openings in two sides, a wave-transparent ground which is made of a wave-transparent material; and a conformal antenna array formed by antenna units distributed on the inner surface of the channel, wherein the antenna units are single-polarized or dual-polarized antennas and can be uniformly or non-uniformly distributed on the inner surface of the ellipsoid channel. The ellipsoidal channel structure is matched with a signal measuring and processing system of a millimeter wave imaging system, so that rapid human body passive three-dimensional imaging security check can be realized when a checked person passes through a security check channel.

Description

technical field [0001] The invention relates to the technical fields of microwave remote sensing, target detection and millimeter wave security inspection imaging, in particular to an ellipsoid channel structure suitable for passive millimeter wave three-dimensional imaging security inspection. Background technique [0002] In view of the increasingly rampant terrorism and violent crimes around the world, governments of various countries have put forward higher requirements for the safety detection of prohibited items carried by the human body in public places. Traditional security inspection methods based on metal detectors cannot detect non-metallic prohibited items including explosives, gasoline, and ceramics. The millimeter wave imaging system has the imaging capability of penetrating human clothing, and can detect various metal and non-metallic prohibited items hidden under human clothing. The passive millimeter wave imaging system itself does not emit electromagnetic ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V8/00G01S13/88G01S13/89G01S7/02
CPCG01V8/005G01S13/887G01S13/89G01S7/02
Inventor 诸葛晓栋苗俊刚孙雪蕾
Owner BEIHANG UNIV
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