Detection of handguns by their complex natural resonant frequencies
Detection of handguns by their complex natural resonant frequencies
复制标题
通过复杂的自然共振频率检测手枪
DOI：
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发表时间：
2010
期刊：
影响因子：
--
通讯作者：
N. Bowring
中科院分区：
文献类型：
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作者：
S. Harmer;David Andrews;N. Rezgui;N. Bowring
将宽带微波能量照射的金属物体的后期瞬态响应分解为阻尼正弦信号，该信号的特征在于与方位无关的极点，被广泛用作飞机和导弹的雷达识别方法。该方法用于检测和区分手枪和非威胁性物品，例如移动的手机、相机、钥匙和笔。探索这种方法的局限性至关重要，如果要用于探测隐藏在人体上或随身携带或靠近人体的袋子中的这种物体，则探索这种技术的局限性。在这里，调查是由两种不同的手枪的复杂的自然共振的计算机建模，这些进行了比较与两个非威胁性的项目：一个移动的手机和钢笔。杆的位置对手枪上的小细节的依赖性也进行了研究，因为这是威胁和非威胁项目相结合的效果。还研究了通过使用交叉极化接收器来增强自然谐振的方式。
The decomposition of the late time, transient response of metallic objects illuminated with broadband microwave energy into damped sinusoidal signals which are characterised by aspect-independent poles, is used extensively as a method of radar identification of aircraft and missiles. This method is utilised here for the detection and discrimination of handguns and non-threatening items, such as mobile phone handsets, cameras, keys and pens. It is of critical importance to explore the limits of this method, if it is to be utilised for the detection of such objects concealed on the human body or in bags carried on or close to the body that the limits of this technique is explored. Here, investigation is made by computer modelling of the complex natural resonances of two different handguns and these are compared with those for two non-threat items: a mobile phone handset and a fountain pen. Dependence of pole positions on small details present on a handgun is also investigated as is the effect of combining threat and non-threat items in close proximity. A way of enhancing the natural resonances by the use of a cross polarised receiver is also investigated.
隐蔽式手枪的远距离探测
DOI：
10.1117/12.777719
发表时间：
2008
期刊：
--
影响因子：
--
作者：
Rezgui N
通讯作者：
Rezgui N