| 天线物理温度对辐射计接收亮温度影响的研究 |
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| 引用本文： | 汪哲思,杨于杰,程春悦,刘杰.天线物理温度对辐射计接收亮温度影响的研究[J].宇航计测技术,2011,31(3):1-4. |
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| 作者姓名： | 汪哲思 杨于杰 程春悦 刘杰 |
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| 作者单位： | 北京无线电计量测试所,北京,100039 |
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| 摘 要： | Dick式辐射计天线物理温度的变化,直接影响辐射计接收的亮温度。设计一种实验方法,通过改变天线物理温度,测量辐射计输出电压,依据二元回归分析方法推出天线的辐射效率,实验中的外推曲线与测量数据吻合。给出了天线物理温度变化和辐射计接收亮温度变化的关系。
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| 关 键 词： | 微波辐射计 亮温度 天线物理温度 |
Research on Antenna Temperature on Brightness Temperature of Receiver |
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| WANG Zhe-si,YANG Yu-ie,CHENG Chun-yue,LIU He.Research on Antenna Temperature on Brightness Temperature of Receiver[J].Journal of Astronautic Metrology and Measurement,2011,31(3):1-4. |
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| Authors: | WANG Zhe-si YANG Yu-ie CHENG Chun-yue LIU He |
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| Institution: | WANG Zhe-si YANG Yu-jie CHENG Chun-yue LIU Jie(Beijing Institute of Radio Metrology and Measurement,Beijing 100039) |
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| Abstract: | The temperature of Dick radiometer's antenna has an effect on brightness temperature of receiver.This paper designs an experiment that changing the antenna's temperature and measuring the output of radiometer,to deduce antenna radiation efficiency with multiple linear regression.The extrapolated data is in accord with measurement data. |
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| Keywords: | Microwave radiometer Brightness Temperature Antenna Temperature |
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