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首页> 外文期刊>Geoscience and Remote Sensing Letters, IEEE >A Passive Technique to Monitor Evaporation Duct Height Using Coastal GNSS-R
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A Passive Technique to Monitor Evaporation Duct Height Using Coastal GNSS-R

机译：使用沿海GNSS-R监测蒸发管高度的被动技术

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摘要

We report on a coastal experiment to monitor evaporation duct height (EDH) using GPS-L1 signals scattered from the sea surface. The campaign was carried out in the South China Sea and was focused on the development of an EDH inversion technique. A high-sensitivity delay-mapping receiver was built for this purpose to collect and process direct and scattered GPS-L1 signals. The received GPS scattered signals are modeled using the bistatic radar equation. The modified refractivity profiles were measured by 12 meteorological sensors which were mounted at different heights on a vertical tower located at the same site. The results show good agreement between the inverted and measured EDHs at satellite elevation angles of 4$^{circ}$ –9$^{circ}$. Based on these results, preliminary conclusions are drawn on the potential of coastal Global Navigation Satellite System-Reflectometry for EDH inversion.
机译：我们报告了一个沿海实验，该实验使用从海面散射的GPS-L1信号监控蒸发管高度（EDH）。该活动在南中国海进行，重点是开发EDH反演技术。为此，制造了一个高灵敏度延迟映射接收器，以收集和处理直接和分散的GPS-L1信号。使用双基地雷达方程对接收到的GPS散射信号进行建模。修改后的折射率分布是通过12个气象传感器测量的，这些传感器以不同的高度安装在同一位置的垂直塔上。结果显示，在卫星仰角为4 $ ^ {circ} $ –9 <公式Formulatype =“ inline”> $ ^ {circ} $ 。基于这些结果，初步得出了关于沿海全球导航卫星系统-反射法在EDH反演中的潜力的初步结论。

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