| 射电天线口面温度定标 |
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| 引用本文： | 周树荣,黄光力.射电天线口面温度定标[J].中国天文和天体物理学报,2000,20(3). |
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| 作者姓名： | 周树荣 黄光力 |
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| 作者单位： | 中国科学院紫金山天文台!南京210008(周树荣)，中国科学院国家天文观测中心!北京100012(黄光力) |
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| 摘 要： | 介绍一种天线口面温度定标的方法．当用这个方法对目标源进行温度定标时，由于定标源讯号和目标源讯号均由天线口面同路输入，因此波导和微波器件的传输损耗在定标的过程中被自动消除，因而这种温度定标方法能大大地提高观测资料的精度．目前无线口面温度定标方法除了在射电天文和微波天线测量中应用外，还广泛应用于雷达和无线电技术测量及微波遥感控制等．
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| 关 键 词： | 天线口面 温度定标 微波黑体标准辐射源 |
Radio Antenna Temperature Calibration at the Aperture Plane of the Antenna |
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| ZHOU Shu-rong,HUANG Guang-li.Radio Antenna Temperature Calibration at the Aperture Plane of the Antenna[J].Chinese Journal of Astronomy and Astrophysics,2000,20(3). |
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| Authors: | ZHOU Shu-rong HUANG Guang-li |
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| Abstract: | In this paper, we preseflt a method of temperature calibration at the aperture plane of the antenna (TCAPA). In this method, transmission loss in the waveguide and microwave components is eliminated automatically, because the noise signals of the target source and calibrating source are input by the same path. This temperature calibration method can be expected to increase the accuracy of the measuxed data and to apply equally t0 radar measurement and microwave remote control techniques. |
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| Keywords: | Temperature calibration aperture plane of antenna microwave blackbody noise source |
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