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WIND FIELD RETRIEVING UNDER RAINY CONDITIONS BASED ON SUPPORT VECTOR MACHINE FOR COMBINED ACTIVE/PASSIVE OBSERVATIONS OF HY-2A
Xu, Xingou; Dong, Xiaolong
作者部门微波遥感部
会议录名称IGARSS 2018 - 2018 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM
2018
页码1501-1503
语种英语
ISSN号2153-6996
ISBN号978-1-5386-7150-4
摘要Wind fields over ocean surface can be effectively retrieved by scatterometer measurements with GMFs (geophysical model functions) relating them and observing geometry with wind speeds. However, existed GMFs are not suitable for rainy conditions which require extra information for rain induced factors in observations that vary with rain conditions. The combined observations of scatterometer and radiometer are suitable for the problem. In this paper, this was realized by the method based on SVM (support vector machine) with kernel function established in this paper considering the form of existed GMFs. Experiments had been conducted over HY-2A scatterometer (HSCAT) and radiometer (HRAD) who give observations at almost the same time and operation frequencies suitable for this problem. The training progress was achieved by taken Windsat wind fields as true values. The method had been verified by comparison made between the wind fields retrieved with that of Buoy data. Discussion were made for further researches exploring the underlying physical progress of the SVM established.
关键词wind field support vector machine kernel function scatterometer radiometer HY-2A
会议名称38th IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
会议日期JUL 22-27, 2018
会议地点Valencia, SPAIN
收录类别CPCI
文献类型会议论文
条目标识符http://ir.nssc.ac.cn/handle/122/6708
专题微波遥感部
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GB/T 7714
Xu, Xingou,Dong, Xiaolong. WIND FIELD RETRIEVING UNDER RAINY CONDITIONS BASED ON SUPPORT VECTOR MACHINE FOR COMBINED ACTIVE/PASSIVE OBSERVATIONS OF HY-2A[C],2018:1501-1503.
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