利用星载ERS-2 SAR进行长江口海面风场反演研究  

Ocean Surface Wind Field Retrieval of the Yangtze River Outlet from Spaceborne ERS-2 SAR Image

作　　者：喻亮[1] 丁晓松[1] 

机构地区：[1]复旦大学通信科学与工程系,上海200433

出　　处：《信息与电子工程》2005年第3期172-175,185,共5页information and electronic engineering

摘　　要：基于SAR图像反演原理,提出一种后向散射系数反演海面风场的新方法,以相关长度确定风向,再利用随机粗糙海面理论模型反演风速。并以ERS-2SAR为数据源,以长江口海区为研究区,获取了海面风场。反演结果和浮标测量风场对比,相符得很好,证明了该方法的可行性。Based on the principle of SAR image retrieval, a new retrieval approach is presented in this paper, which can evaluate wind direction, then retrieve wind speed by randomly rough sea surface theoretical model. As a case of study, a ERS-2 SAR image of the Yangtze River outlet is analyzed. The results are compared with measured buoy data. It is shown that they are in good agreement and the method is available.

关 键 词：信息处理技术 海面风场 图像反演 合成孔径雷达 长江口 

分 类 号：V443[航空宇航科学与技术—飞行器设计]