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总览 评价 逯暄 1, , 肖泽龙 1,* , 吴礼 1, , 胡泰洋 2, , 许建中 1, ( 1、 电子工程与光电技术学院,南京理工大学,南京 210094; 2、 中国空间技术研究院西安分院,西安,710100; ) 摘要: 本文针对用于安全检查的被动毫米波成像实验展开研究
逯暄1,, 肖泽龙1,*, 吴礼1,, 胡泰洋2,, 许建中1,
(
1、电子工程与光电技术学院,南京理工大学,南京 210094; 2、中国空间技术研究院西安分院,西安,710100; )
摘要:
本文针对用于安全检查的被动毫米波成像实验展开研究。在讨论用于人体隐匿物品探测的毫米波辐射温度传递模型的基础上,介绍了工程实现的采用圆锥扫描单通道被动毫米波成像系统,利用样机进行了模拟安检的隐匿物品探测对照实验,分别获取了藏有隐匿物品和未藏有隐匿物品的被动毫米波图像,并设计了一种非线性亮度变换函数对实验获取的图像进行处理。实验结果验证了设计实现的被动毫米波系统可以用于人体隐匿物品探测,所设计的亮度变换函数有效提高了图像的可辨识性。
关键词:
毫米波成像;隐匿物品探测;被动探测;辐射计系统
LU Xuan1,, XIAO Zelong1,*, WU Li1,, HU Taiyang2,, XU Jianzhong1,
(
1、School of Electronic Engineering and Optoelectronic Technology, Nanjing University of Science and Technology, Nanjing 210094; 2、China Academy of Space Technology (Xi'an), Xi'an 710100; )
Abstract:
Focused on security application, experiments are carried out to research on passive millimmeter wave imaging. The personnel concealed object detection model is discussed, and a prototype of conically scanning single pixel imaging system is realized and introduced. The control experiment is carried out using the prototype, and the images with and without the concealed object are respectively obtained. A nonlinear brightness transform function is also designed to process the obtained images. The experiment result demonstrates the capability of the realized PMMW imaging system for security application, and the designed brightness transform function could effectively enhance the intelligibilityof the images.
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