王振占1,
张升伟1
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 100190
2.中国科学院大学 北京 100190
基金项目:国家重点研发计划(2018YFB0504900)
详细信息
作者简介:段永强:男,1993年生,博士生,研究方向为微波辐射计系统设计与仿真
王振占:男,1969年生,研究员,研究方向为微波遥感新技术及应用技术研究
张升伟:男,1964年生,研究员,研究方向为微波辐射计系统设计与应用
通讯作者:段永强 anlian310@163.com
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出版历程
收稿日期:2019-06-18
修回日期:2020-03-09
网络出版日期:2020-04-11
刊出日期:2020-06-22
Modeling and Simulating of Microwave Humidity and Temperature Sounder Onboard the FY-3(D) Satellite
Yongqiang DUAN1, 2,,,Zhenzhan WANG1,
Shengwei ZHANG1
1. Key Laboratory of Microwave Remote Sensing, National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China
2. University of Chinese Academy of Sciences, Beijing 100190, China
Funds:The National Key R&D Program of China (2018YFB0504900)
摘要
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。
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
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.
Key words:FY-3(D) Satellite/
Microwave humidity and temperature sounder/
Total power microwave radiometer/
Millimeter wave system modeling/
Computer simulation
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