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Calibration and Validation of Microwave Radiometer (RAD) on-aboard SZ-4 Spacecraft Part:Ⅰ RAD External Calibration
Author(s): WANG Zhenzhan, LI Zuo
Pages: 397-
403
Year: 2004
Issue:
5
Journal: JOURNAL OF REMOTE SENSING
Keyword: 神舟四号飞船; 微波辐射计; 外定标;
Abstract: 文中针对神舟四号飞船辐射计(RAD)的在轨定标特点,提出一种替代外定标方案,即利用地球表面典型地物的微波辐射对RAD的不同通道重新进行定标.选取了全球大洋开阔海域的浮标、星载微波辐射计产品和小岛上气象探空数据,通过理论计算得出的亮温作为辐射计测量的低端.利用南美洲热带雨林亮温作为高端,重新给出了RAD定标方程.同时,为了确定定标的效果,分别与国外星载微波辐射计相同或相近通道的亮温进行了比较.另外还结合南海地面配合试验的测量结果对辐射计定标数据进行了分析.
Citations
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