Millimeter-Wave Imaging: A Comparative Study

被引：0

作者：

Ranjbar, Ehsan Rashidi ^{[1
]}

Dehmollaian, Mojtaba ^{[1
]}

机构：

[1] Univ Tehran, Sch Elect & Comp Engn, Tehran, Iran

来源：

2016 FOURTH INTERNATIONAL CONFERENCE ON MILLIMETER-WAVE AND TERAHERTZ TECHNOLOGIES (MMWATT) | 2016年

关键词：

millimeter-wave; Approximate high-frequency techniques; microwave imaging; CONCEALED WEAPON DETECTION;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper millimeter-wave imaging of perfectly conducting objects and targets with impedance surfaces within the frequency range of 27-33 GHz is calculated. First, the scattered fields are computed using physical optics approximation. Next, two different imaging methods, holography and standard back-projection techniques are evaluated and compared. The backward-wave reconstruction algorithm is implemented using two dimensional (2D) sampling at a single frequency and the standard back-projection method is implemented using a ID sampling and multiple frequency points. It is shown that holography can provide a fine detail of structure. However, it needs a larger number of sampling points. On the other hand, the standard back-projection method needs a relatively smaller number of sampling points, showing edges. Finally, a measurement set up working within the frequency range of 8-12 GHz is used to provide an imaging result employing measurement data.

引用

页码：83 / 86

页数：4

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