红外与毫米波学报2017，Vol.36Issue(4)：408-414,7.DOI:10.11972/j.issn.1001-9014.2017.04.006
W波段三维近场安检成像系统
Three-dimensional near-field surveillance imaging using W-band system
程航 1郑海涛 1敬汉丹 1李世勇 1孙厚军1
作者信息
- 1. 北京理工大学信息与电子学院,北京100081
- 折叠
摘要
Abstract
A W-band stepped-frequency three-dimensional near-field surveillance imaging system together with an effective radar imaging algorithm is presented.W-band signal is able to penetrate common clothing barriers to form an image of a person as well as any concealed items.Performing the image reconstruction procedure in the frequency-wavenumber domain,the algorithm is able to completely compensate the wavefront curvature in the near field through interpolation process.The interpolation relationship in frequency-wavenumber domain between sampled data and desired data was demonstrated.Moreover,the difference between algorithm model and experimental data are revealed.High range resolution and lateral resolution were obtained by emitting wideband stepped frequency signal and adopting high operating frequency.The cross-range resolution of the imaging result is better than 5 mm.The scheme of imaging system is described in detail along with a set of imaging results to show its superior imaging precision and sensitivity compared with existing Ka-band equipment.关键词
毫米波成像/近场成像/人体安检/三维成像/W波段系统Key words
millimeter-wave (MMW) imaging/near-field imaging/personnel surveillance/three-dimensional imaging/W-band system分类
信息技术与安全科学引用本文复制引用
程航,郑海涛,敬汉丹,李世勇,孙厚军..W波段三维近场安检成像系统[J].红外与毫米波学报,2017,36(4):408-414,7.
