镜像综合孔径微波辐射成像原理验证实验研究  

Research on Experimental Verification of Principle of Microwave Radiometric Imaging with Mirrored Aperture Synthesis

作　　者：李青侠 窦昊锋 陈良兵[3] 桂良启 陈柯 郎量 靳榕 郭伟 LI Qingxia;DOU Haofeng;CHEN Liangbing;GUI Liangqi;CHEN Ke;LANG Liang;JIN Rong;GUO Wei(School of Electronic Information and Communications,Huazhong University of Science and Technology,Wuhan 430074,Hubei,China;Science and Technology on Multi-Spectral Information Processing Laboratory,Wuhan 430074,Hubei,China;School of Information Engineering,Nanchang University,Nanchang 330031,Jiangxi,China)

机构地区：[1]华中科技大学电子信息与通信学院,湖北武汉430074 [2]多谱信息处理技术重点实验室,湖北武汉430074 [3]南昌大学信息工程学院,江西南昌330031

出　　处：《上海航天》2018年第2期126-135,共10页Aerospace Shanghai

基　　金：国家重点研发计划(2016YFC1401005);国家自然科学基金(41176156;61771213;41505015);中央高校基本科研业务费资助(2016JCTD203);上海航天科技创新基金(SAST2017-113;SAST2016087;SAST2015032)

摘　　要：为验证镜像综合孔径微波辐射成像的原理,设计了V波段镜像综合孔径辐射成像原理实验系统(MAS-V),介绍了系统组成及原理并进行了电暖器辐射成像及空间分辨率实验,电暖器热辐射部分清晰可见,且轮廓与光学图像结果一致。实验结果表明:镜像综合孔径微波辐射成像的原理正确。对于相同的天线阵列,镜像综合孔径的空间分辨率优于常规综合孔径,约为其2倍。若增大反射板与天线阵列的距离,镜像综合孔径的空间分辨率将进一步提高。研究结果为镜像综合孔径微波辐射成像方法应用于静止轨道大气遥感提供了参考。In order to verify the principle of microwave radiometric imaging with mirrored aperture synthesis(MAS),an innovative experimental system of MASat V band(MAS-V)is proposed.Composition and principle of the system are introduced.An imaging experiment of an electric warmer and experiments of spatial resolution are carried out.The thermal radiation of the electric heater is clearly visible,with the outline conforming to the result of the optical image.The experimental results show that the MAS principle is correct and for the same antenna array,MAS can achieve higher spatial resolution compared with conventional aperture synthesis.If the distance between the reflector and the antenna array is increased,the spatial resolution of MAS will be further improved.Research results provide a reference for the application of MAS in atmospheric remote sensing from geostationary orbit.

关 键 词：被动微波遥感 镜像综合孔径 微波辐射成像 空间分辨率 辐射计 

分 类 号：TP732[自动化与计算机技术—检测技术与自动化装置]