被动毫米波三维成像技术初探  

Preliminary study on 3D passive millimeter-wave imaging

作　　者：孙雪蕾 胡岸勇[1] 诸葛晓栋 苗俊刚[1] SUN Xuelei;HU Anyong;ZHUGE Xiaodong;MIAO Jungang(Beijing Key Laboratory of Microwave Sensing and Security Application,Beihang University,Beijing 100191,China)

机构地区：[1]北京航空航天大学微波感知与安防应用北京市重点实验室,北京100191

出　　处：《电波科学学报》2022年第4期537-545,585,共10页Chinese Journal of Radio Science

基　　金：国家自然科学基金(61731001,62171011)。

摘　　要：在简述当前被动毫米波二维成像技术已取得的成果及存在的不足的基础上,介绍了被动三维成像技术的原理、优势及难点.对理想均匀球面阵列的被动三维成像性能进行了仿真分析,并着重对由成像遮挡问题引起的成像效果恶化进行了仿真评估.最后提出了一种适用于非合作式人体安检的“门”型通道成像阵列,并对其能够实现的被动三维成像效果进行了探讨.结果表明,所提出的“门”型通道成像阵列理论能够实现波长级的被动三维成像分辨率.On the basis of a brief description of the achievements and shortcomings of the conventional 2D passive millimeter-wave imaging technology,the principles,advantages,and implementation difficulties of 3D passive imaging are introduced.The 3D imaging performance of an ideal uniform spherical array is analyzed by numerical simulation and the imaging quality deterioration caused by the blocking effect is evaluated.Finally,a portal type imaging array suitable for non-cooperative human security screening is proposed and the imaging performance of this kind of array is analyzed.Simulation results indicate that the proposed portal imaging array theory can achieve wavelength-level passive 3D imaging resolution.

关 键 词：被动 毫米波 三维成像 人体安检 干涉式辐射计 

分 类 号：TN98[电子电信—信息与通信工程]