Adapting the sir algorithm to ASCAT
Adapting the sir algorithm to ASCAT
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DOI：
10.1109/igarss.2010.5650207
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发表时间：
2010-07
期刊：
影响因子：
--
通讯作者：
R. Lindsley;D. Long
中科院分区：
文献类型：
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作者：
R. Lindsley;D. Long
散射计的发射主要是为了测量海风。散射计图像重建算法的应用提高了散射计数据的价值。SIR算法提高了散射计数据的有效分辨率，以支持其用于其他研究。SIR已成功地用于多个散射计，包括QuikSCAT。在本文中，我们描述了SIR算法是如何适用于ASCAT数据的。使用ASCAT的SZF数据可以获得最佳的分辨率增强。SIR要求对每一次测量的空间范围进行估计。我们详细介绍了我们的方法来估计每个ASCAT测量的近似空间响应函数。最后，调整SIR参数以用于ASCAT。
Scatterometers have been launched primarily to measure ocean winds. The value of scatterometer data is increased by application of the SIR (Scatterometer Image Reconstruction) algorithm. The SIR algorithm enhances the effective resolution of the scatterometer data to support its use for other studies. SIR has been used successfully on several scatterometers, including QuikSCAT. In this paper, we describe how the SIR algorithm is adapted to ASCAT data. Using SZF data from ASCAT leads to the best resolution enhancement. SIR requires an estimate of the spatial extent for each measurement. We detail our method to estimate an approximate spatial response function for each ASCAT measurement. Finally, SIR parameters are tuned for use with ASCAT.