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遥感技术与应用  2002, Vol. 17 Issue (1): 1-5    DOI: 10.11873/j.issn.1004-0323.2002.1.1
研究与应用     
星载W波段毫米波辐射计研究
李 靖,张升伟,孙茂华,孔德才,刘和光,姜景山
(中国科学院空间科学与应用研究中心,国家八六三计划微波遥感技术实验室,北京  100080)
Study of Spaceborne W-band Millimeter Wave Radiometer
LI Jing, ZHANG Sheng-wei, SUN Mao-hua, KONG De-cai,LIU He-guang, JIANG Jing-shan
(Center for Space Science and Applied Research,Chinese Academy of Sciences,
National Microwave Remote Sensing Laboratory,Beijing100080,China)
 全文: PDF 
摘要:

在863-2项目支持下,开展了W波段毫米波辐射计的研究。其工作中心频率为90.5 GHz,带宽为2 GHz,积分时间为200 ms时其系统灵敏度达到0.6 K,线性度优于0.999。这些技术指标基本达到了星载应用的要求。为配合扫描成像研制了两套天线系统,一套为Cassegrain天线,另外一套为二元光学天线,它是利用光学衍射原理制成的位相型Fresnel波带片。二元天线具有设计灵活、加工方便、体积小、重量轻、旁瓣电平低和安装方便等优点。W波段微波辐射计系统在实验室内进
行了扫描成像试验,取得了W波段微波辐射计扫描图像。

关键词: 毫米波辐射计二元光学天线 W波段    
Abstract:

The W-band millimeter wave radiometer has been successfully developed under the support of 863-2 projects. The operating frequency is 90.5 GHz and the bandwidth is 2 GHz. The sensitivity of the system is 0.6K and the integration time is 200 ms. The linearity is better than 0.999. The technical index attains the goal to be used in space. Two sets of antenna system have been studied in order to accomplish the work of scanning and imaging. One is Cassegrain and another is binary optical antenna. The principle of the binary optical antenna is optical diffraction. This kind of antenna has some advantages: flexible design, easily to be processed,small volume, light weight, low sidelobe and easily to be assembled. The scanning and imaging experiments of the W-band microwave radiometer have been done in the laboratory and successfully got some images.

Key words: Millimeter wave radiometer    Binary optical antenna    W-band
收稿日期: 2001-11-22 出版日期: 2011-11-21
:  TP 751  
基金资助:

本项目得到总装备部预研基金资助。

作者简介: 李靖(1967-),男,博士后,主要从事微波遥感器的研制,微波辐射计的定标研究及地物电磁散射热辐射特性的理论研究。
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引用本文:

李 靖,张升伟,孙茂华,孔德才,刘和光,姜景山. 星载W波段毫米波辐射计研究[J]. 遥感技术与应用, 2002, 17(1): 1-5.

LI Jing, ZHANG Sheng-wei, SUN Mao-hua, KONG De-cai,LIU He-guang, JIANG Jing-shan. Study of Spaceborne W-band Millimeter Wave Radiometer. Remote Sensing Technology and Application, 2002, 17(1): 1-5.

链接本文:

http://www.rsta.ac.cn/CN/10.11873/j.issn.1004-0323.2002.1.1        http://www.rsta.ac.cn/CN/Y2002/V17/I1/1

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