中国激光, 2019, 46 (6): 0614032, 网络出版: 2019-06-14
针对隐藏目标检测的太赫兹波站开式全极化全息雷达成像实验 
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Standoff Fully-Polarimetric Holographic-Radar-Imaging Experiments in Terahertz Regime for Concealed Target Detection
图 & 表
图 1. 毫米波全极化全息成像示意图
Fig. 1. Schematic of millimeter wave fully- polarimetric holographic imaging
图 2. 频率为140 GHz的全极化全息雷达成像系统架构
Fig. 2. Structural diagram of 140 GHz fully-polarimetric holographic radar imaging system
图 3. 成像目标的光学图像。(a)覆盖毛巾的手枪模型;(b)无遮挡手枪模型;(c)手枪模型的放大表面纹理
Fig. 3. Optical images of imaging targets. (a) Pistol model covered by towel; (b) uncovered pistol model; (c) enlarged surface texture of pistol model
图 4. 带支架的0°二面角HH与VV极化散射系数比值的幅度和幅角随入射角θ(天线俯仰方向)的变化情况
Fig. 4. Amplitude and argument of SHH/SVV of dihedral reflector with 0° fixed to holder versus angle of incidence
图 5. 多视处理后的Sspan沿距离维的最大值投影成像结果。(a)全孔径;(b) 4视;(c) 9视;(d) 16视
Fig. 5. Maximum projection imaging results along range dimension of Sspan after multilook processing. (a) Full aperture; (b) 4 looks; (c) 9 looks; (d) 16 looks
图 6. 基于Pauli基极化分解的归一化最大值投影成像结果。(a)(d) |a|2=|SHH+SVV|;(b)(e) |b|2=|SHH-SVV|;(c)(f) |c|2=| SHV+SVH |
Fig. 6. Normalized maximum projection imaging results by polarization decomposition based on Pauli basis.(a)(d) |a|2=|SHH+SVV|; (b)(e) |b|2=|SHH-SVV|; (c)(f) |c|2=|SHV+SVH|
表 1多视处理后的HH、HV、VH、VV这4个极化通道的成像分辨率
Table1. Imaging resolution for four polariimetric channels of HH, HV, VH, and VV after multilook processing
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经文, 安健飞, 江舸, 成彬彬, 张健. 针对隐藏目标检测的太赫兹波站开式全极化全息雷达成像实验[J]. 中国激光, 2019, 46(6): 0614032. Wen Jing, Jianfei An, Ge Jiang, Binbin Cheng, Jian Zhang. Standoff Fully-Polarimetric Holographic-Radar-Imaging Experiments in Terahertz Regime for Concealed Target Detection[J]. Chinese Journal of Lasers, 2019, 46(6): 0614032.
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