| 双模态微波遥感器的研制 |
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| 引用本文： | 张德海,张俊荣,张升伟,赵凯.双模态微波遥感器的研制[J].遥感学报,1999,3(2):103-106. |
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| 作者姓名： | 张德海 张俊荣 张升伟 赵凯 |
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| 作者单位： | 中国科学院长春地理研究所微波遥感室,长春,130021 |
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| 摘 要： | 散射计和辐射计是微波遥感信息获取的重要遥感器。文中提出了利用公共高频通道将散射计与辐射计组合成散射辐射计的设计思想，作者根据该思想研制成功了Ｘ波段散射辐射计。文中给出了该散射辐射计的工作原理、工作时序及性能指标。通过野外测量实验证明，利用该思想研制散射辐射计是可行的
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| 关 键 词： | 散射-辐射计，散射计，辐射计 |
| 收稿时间： | 1998/3/17 0:00:00 |
| 修稿时间： | 1998-03-17 |
The Development of a Double Mode Microwave Sensor |
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| ZHANG De Hai,ZHANG Jun Rong,ZHANG Sheng Wei and ZHAO Kai.The Development of a Double Mode Microwave Sensor[J].Journal of Remote Sensing,1999,3(2):103-106. |
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| Authors: | ZHANG De Hai ZHANG Jun Rong ZHANG Sheng Wei and ZHAO Kai |
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| Institution: | Changchun Institute of Geography, CAS, Changchun 130021, China;Changchun Institute of Geography, CAS, Changchun 130021, China;Changchun Institute of Geography, CAS, Changchun 130021, China;Changchun Institute of Geography, CAS, Changchun 130021, China |
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| Abstract: | Microwave remote sensing information includes active and passive
microwave remot e sensing information. Under some conditions, they usually show different
chara cteristics of the same object. So acquiring active and passive microwave remote sensing
information simultaneously is very important to interpretation, decision and inversion of
microwave remote sensing. Scatterometer and radiometer are important sensors for
microwave remote sensin g information acquisition. A scattero radiometer composed of a
scatterometer an d a radiometer can measure backscattering coefficient and brightness
temperature of the same object simultaneously and it is superior in size, weight and operati
on. In the paper, the design idea of a scattero radiometer is put forward. In the i dea, a public
antenna and a public high frequency channel are used to receive sc attering and radiation
signals at the same time. Then, the signals are separate d by filters in intermediate frequency
and processed respectively. An X band sca ttero radiometer is developed according to the
idea. A simple continuous wave s catterometer and a digital gain compensation microwave
radiometer are adopted i n the scattering and radiation mode respectively. The fundamental
diagram and th e timing program of the scattero radiometer are introduced. The performance of
the receiver has been tested and the results are given. Scattering and radiati on
characteristics of soil versus water content have been measured with the sca ttero radiometer.
The results have been compared with the analogous results ac hieved aboard and the trends
are the same. It shows that each mode of the scatte ro radiometer can work in sequence and
they don't disturb each other. It prove s that it is feasible to develop a scattero radiometer
according to the idea. |
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| Keywords: | Scattero radiometer Scatterometer Radiometer |
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