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An L-band Phased Array Radiometer for Sea Surface Salinity in Coastal Zones
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing ( IF 5.5 ) Pub Date : 2021-01-01 , DOI: 10.1109/jstars.2020.3045813
Hailiang Lu , Hao Li , Yayun Cheng , Dong Zhu , Yinan Li , Pengju Dang , Rongchuan Lv , Rui Yu , Yongjie Fu

Sea surface salinity (SSS) in coastal zones with high temporal and spatial resolutions is also needed for scientific research and marine economy. However, one of the limitations of airborne L-band real-aperture microwave radiometers and synthesis aperture interferometric radiometers is high mass and volume or the high complexity of the system. To overcome the limitations, an L-band phased array radiometer is proposed as an alternative solution to monitor SSS in coastal zones from a small unmanned aerial vehicle (UAV). The L-band phased array radiometer is introduced, which only comprises a phased array and a single receiver. In addition, the calibration methods of the L-band phased array, radiometer that the external calibration method and the internal calibration method, are also introduced. A series of experiments was performed to assess the performance of the L-band phased array radiometer. The results indicate that the L-band phased array radiometer show a good performance in low pointing angles and low scanning angles. As a conclusion, the L-band phased array radiometer can be an alternative solution to monitor SSS in coastal zones with high temporal and spatial resolutions from a small UAV.

中文翻译:

用于沿海地区海面盐度的 L 波段相控阵辐射计

科学研究和海洋经济也需要具有高时空分辨率的沿海地区的海面盐度(SSS)。然而,机载L波段实口径微波辐射计和合成孔径干涉辐射计的局限性之一是质量和体积大或系统复杂性高。为了克服这些限制,建议使用 L 波段相控阵辐射计作为替代解决方案,从小型无人机 (UAV) 监测沿海地区的 SSS。介绍了L波段相控阵辐射计,它只包括一个相控阵和一个接收机。此外,还介绍了L波段相控阵辐射计的标定方法,即外标定法和内标定法。进行了一系列实验来评估 L 波段相控阵辐射计的性能。结果表明,L波段相控阵辐射计在低指向角和低扫描角方面表现出良好的性能。总而言之,L 波段相控阵辐射计可以作为一种替代解决方案,用于从小型无人机监测沿海地区具有高时空分辨率的 SSS。
更新日期:2021-01-01
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