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北京一号数据检测渤海海洋锋
Authors
平博
杜云艳
苏伟光
苏奋振
Publication date
1 January 2014
Publisher
Abstract
本文基于引力模型,对北京一号对地观测小卫星数据渤海区域进行海洋锋面检测。针对北京一号小卫星数据的特点,选择红波段作为实验波段,并选择渤海湾南岸水色锋和辽东湾东岸辐射沙脊两个实验区域。算法首先对数据进行线性拉伸,波段运算等预处理,突出锋面信息,其中,拉伸区间由图像直方图确定,接着应用引力模型对预处理后的数据进行锋面检测。实验结果表明,本文算法能够对两个实验区域的锋面进行检测,得到的锋面信息连续、突出,证明了算法的有效性;针对北京一号对地观测小卫星数据,本文算法相比于传统锋面检测算法,能够得到更加连续的锋面信息,并能较好抑制近岸泥沙对锋面检测的干扰
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Last time updated on 24/06/2021