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首页> 外文期刊>Geoscience and Remote Sensing Letters, IEEE >Assessing Long-Term Stability of SMOS Zero-Baseline Antenna Temperature Using the Aquarius Antenna Temperature Simulator
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Assessing Long-Term Stability of SMOS Zero-Baseline Antenna Temperature Using the Aquarius Antenna Temperature Simulator

机译：使用水瓶座天线温度模拟器评估SMOS零基线天线温度的长期稳定性

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摘要

The National Aeronautics and Space Administration's Aquarius and the European Space Agency's Soil Moisture and Ocean Salinity (SMOS) are satellite missions to make global L-band brightness temperature measurements. Aquarius uses a sophisticated antenna temperature simulator over oceans for the calibration of its brightness temperature measurements. In this investigation, the simulator was adapted to simulate the real aperture antenna temperature measured by the SMOS reference radiometers. It is found that the simulated antenna temperature is very close to the measured value. The analysis shows that the simulated antenna temperature can be utilized for SMOS calibration studies as an additional independent reference, as well as for investigating the consistency between SMOS and Aquarius brightness temperature measurements.
机译：美国国家航空航天局的水瓶座和欧洲航天局的土壤湿度和海洋盐度（SMOS）是执行全球L波段亮度温度测量的卫星任务。水瓶座在海洋上使用复杂的天线温度模拟器来校准其亮度温度测量值。在这项研究中，模拟器适用于模拟由SMOS参考辐射计测量的实际孔径天线温度。发现模拟天线温度非常接近测量值。分析表明，仿真天线温度可用于SMOS校准研究，作为附加的独立参考，以及用于研究SMOS和水瓶座亮度温度测量之间的一致性。

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