Security-related active imaging of dielectric objects attached to human bodies
Security-related active imaging of dielectric objects attached to human bodies
复制标题
附着在人体上的电介质物体的安全相关主动成像
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
J. Detlefsen
中科院分区：
文献类型：
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作者：
S. Bertl;J. Detlefsen
在过去的几年中，已经使用毫米波开发了用于检测人体处的隐藏威胁的几种方法。毫米波的使用允许探测金属和非金属物体。使用主动照明的设置主要利用发射信号与接收信号之间的相干性来沿合成孔径沿着执行波束成形或处理。当需要检测电介质物体时，通常不再给出这些处理步骤中所做的假设。这同样适用于放置在反射背景（如人类皮肤）前面的对象。本文讨论了这些条件下可能发生的影响。
In the last years, several approaches for the detection of concealed threats at the body of a person have been developed using millimetre-waves. The utilisation of millimetre-waves allows for the detection of both metallic and non-metallic objects. Setups using active illumination mainly exploit coherence between transmitted and received signal to perform beamforming or processing along a synthetic aperture. When dielectric objects should be detected, the assumptions done in these processing steps are often no longer given. The same applies for objects that are placed in front of a reflecting background like the human skin. The effects that can occur for these conditions are discussed in this paper.