| 风云三号(D)气象卫星微波湿温度计系统建模和仿真 |
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| 引用本文： | 段永强,王振占,张升伟.风云三号(D)气象卫星微波湿温度计系统建模和仿真[J].电子与信息学报,2020,42(6):1549-1556. |
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| 作者姓名： | 段永强 王振占 张升伟 |
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| 作者单位： | 1.中国科学院国家空间科学中心 微波遥感重点实验室 北京 1001902.中国科学院大学 北京 100190 |
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| 基金项目： | 国家重点研发计划(2018YFB0504900) |
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| 摘 要： | 针对风云三号卫星微波湿温度计，该文建立了全功率式微波辐射计系统的仿真模型，重点对热辐射噪声源、混频器、低噪放、滤波器与检波器等关键性器件进行了参数化建模。从信号处理的角度对全功率式微波辐射计的工作过程进行了模拟，并对仿真系统的输出功率、灵敏度和线性度进行评估与分析。通过与实际仪器的测试结果对比，验证了所提仿真模型的正确性。
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| 关 键 词： | 风云三号(D)气象卫星 微波湿温度计 全功率式微波辐射计 毫米波系统建模 计算机仿真 |
| 收稿时间： | 2019-06-18 |
Modeling and Simulating of Microwave Humidity and Temperature Sounder Onboard the FY-3(D) Satellite |
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| Yongqiang DUAN,Zhenzhan WANG,Shengwei ZHANG.Modeling and Simulating of Microwave Humidity and Temperature Sounder Onboard the FY-3(D) Satellite[J].Journal of Electronics & Information Technology,2020,42(6):1549-1556. |
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| Authors: | Yongqiang DUAN Zhenzhan WANG Shengwei ZHANG |
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| Institution: | 1.Key Laboratory of Microwave Remote Sensing, National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China2.University of Chinese Academy of Sciences, Beijing 100190, China |
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| Abstract: | A simulation model of total power microwave radiometer is developed for the microwave humidity and temperature sounder onboard the FY-3 satellite. The key components such as mixer, low noise amplifier, local oscillator, filter and detector are parametrically modeled. The model is studied from the aspect of signal processing, and dynamic range, sensitivity and linearity of the simulation system are evaluated and analyzed. The correctness of the simulation model is verified by comparing them with the test results of the actual system. |
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