Wind vector retrieval using dual polarization imagery of ASAR

查看全文 作　　者：SONG [1,2]Guiting;HOU [1]Yijun;QI [1]Peng

机构地区：[1]Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;[2]Graduate School, Chinese Academy of Sciences,Beijing 100039, China

出　　处：《Progress in Natural Science:Materials International》索引2006年第16卷第11期,共5页

基　　金：Supported by National Natural Science Foundation of China (Grant No .90411013) andthe National High Technology Research and DevelopmentProgramof China (Grant No .2001 AA633070) 摘　　要：A new algorithm for retrieving wind vector using dual polarization imagery of advanced synthetic aperture radar (ASAR) is developed and tested. Based on the combination of co-polarization and cross-polarization, this new algorithm effectively eliminates the 180° ambiguity which occurs when using single imagery of the ASAR to retrieve wind vector. This algorithm also solves the problem that the retrieval results will break down on very small spatial scales. The results retrieved from dual polarization imagery of ASAR show that the wind speed and direction are in agreement with the data from Quikscat and buoy measurements. The root mean square errors of wind direction and speed between the retrieved results and data from Quikscat are 2.21° and 0.53 m/s, respectively. Comparisons between the new method and the traditional method show that the new methods fit the buoy data and Quikscat data a little better than the traditional method in this image. 关键词：风矢量恢复 ASAR 双极化合成孔径雷达

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Wind vector retrieval using dual polarization imagery of ASAR

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