基于无人机MiniSAR和正射影像的海岸带开发利用信息提取对比研究

近年来,海洋在沿海国家的战略地位空前提升,海洋遥感技术也被广泛应用。海洋遥感利用电磁波与大气和海洋的相互作用原理,从卫星平台观测和研究海洋海岸带的各种现象,从而获取海岸带信息,分析海岸带变化。文章基于GIS和遥感技术,利用无人机搭载微型合成孔径雷达(MiniSAR)获取高分辨率SAR影像并与无人机光学正射影像进行对比研究,获取了海岸带开发利用信息分布状况,分析了两种手段获取结果的差异性原因,为深入开展无人机遥感监测在海洋管理中的应用奠定了基础。利用无人机机动灵活的特点,宏观、快速、高效地获取海岸带信息,并实时监测海岸带动态变化,将为海洋综合管理、海洋经济发展、海洋环境保护提供基础数据和技术支撑。

Coastal Zone Development and Utilization Information Extraction and Comparison Based On UAV MiniSAR and Ortho Image

In recent years,the strategic position of ocean has been greatly increased among coastal countries.Ocean remote sensing (RS) technology is also widely used.This technology uses the principle of interaction between electromagnetic wave,ocean and atmosphere.It can observe and study various phenomena of coastal zones from satellite platform to analyze coastal zone changes through the data it acquired.This paper,based on the technology of GIS and RS,conducted the study on comparing the high-resolution UAV MiniSAR image with UAV ortho image to obtain the status and distribution information of coastal zone development and utilization.The paper also analyzed the reasons why difference existed in the results of the two methods.The research laid the foundation for in-depth marine management application of UAV remote sensing monitoring technology.By taking the flexible advantages of UAV,we can not only acquire the coastal zone information microscopically,rapidly and efficiently,but also monitor the dynamic changes of coastal zones in real time,which will provide basic data and technology support for integrated marine management,marine economy development and marine environment protection.