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首页> 外文会议>25th Asian conference on remote sensing (ACRS Silver Jubilee) >A METHOD TO DETECT WIND DIRECTION OF SEA SURFACE THROUGHSHALLOW UNDERWATER TOPOGRAPHY AND ITS SAR IMAGE
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A METHOD TO DETECT WIND DIRECTION OF SEA SURFACE THROUGHSHALLOW UNDERWATER TOPOGRAPHY AND ITS SAR IMAGE

机译：通过浅层水下地形探测海面风向的方法及其SAR图像

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摘要

Wind direction of sea surface is one feature of wind field detection. SAR imagesrninclude information of wind direction of sea surface. A method to detect wind direction of searnsurface named the maximum correlation coefficient method is presented in this paper throughrnshallow underwater topography and its SAR image. It can be done in the following three steps:rnfirstly, to calculate the simulation SAR images in different wind directions through shallowrnunderwater topography and SAR image simulation model which is built on SAR imagingrnmechanism of shallow underwater topography; secondly, to calculate the maximum correlationrncoefficients between simulation SAR images in different wind directions and real SAR image;rnlastly, to find wind direction through searching the maximum correlation coefficient. In thernpaper, we analyze three scenes of SAR images obtained in different time to get wind direction inrntheir imaging time. These analyses can testify the feasibility of the maximum correlationrncoefficient method. In addition, the paper compares precision of wind direction detectionrnachieved by SAR and by scatterometer.
机译：海面的风向是风场检测的特征之一。 SAR图像包括海面风向信息。本文通过浅水区水下地形及其SAR图像，提出了一种探测海面风向的方法，即最大相关系数法。可以通过以下三个步骤完成：首先，通过浅水水下地形和建立在浅水水下地形SAR成像机理上的SAR图像模拟模型，计算出不同风向的模拟SAR图像。其次，计算不同风向的模拟SAR图像与真实SAR图像之间的最大相关系数；最后，通过搜索最大相关系数来确定风向。在本文中，我们分析了在不同时间获得的SAR图像的三个场景，以获取其成像时间中的风向。这些分析可以证明最大相关系数法的可行性。另外，比较了SAR和散射仪实现的风向检测精度。

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  • 来源
  • 会议地点 Chiang Mai(TH);Chiang Mai(TH)
  • 作者

    Yang Jungang; Zhang Jie; Meng Junmin;

  • 作者单位

    First Institute of Oceanography, State Oceanic Administration NO. 6, Xianxialing Road, Qingdao, 266061, ChinarnTel: (86)-532-8967394 Fax: (86)-532-8967094 E-mail: yangjg@fio.org.cn;

    First Institute of Oceanography, State Oceanic Administration Key Laboratory of Marine Science and Numerical Modeling, State Oceanic Administration NO. 6, Xianxialing Road, Qingdao, 266061, ChinarnTel: (86)-532-8967486 Fax: (86)-532-8967094 E-mail: zhangjie@public.qd.sd.cn;

    First Institute of Oceanography, State Oceanic Administration NO. 6, Xianxialing Road, Qingdao, 266061, China Tel: (86)-532-8967394 Fax: (86)-532-8967094 E-mail: mengjm@fio.org.cn;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Shallow underwater topography; SAR image; simulation SAR image; windrndirection;

    机译：浅层水下地形； SAR图像；模拟SAR图像；风向;

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