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首页> 外文会议>Asian conference on remote sensing;ACRS >DEVELOPMENT OF HYPERSPECTRAL IMAGING SYSTEM FOR COASTAL ZONE STUDIES
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DEVELOPMENT OF HYPERSPECTRAL IMAGING SYSTEM FOR COASTAL ZONE STUDIES

机译：沿海地带超光谱成像系统的研制

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Seagrass and seaweed beds play very important ecological roles such as spawning, nursery and feeding grounds for many marine organisms. However, they are sensitive to environmental changes and human impacts. Coastal zone monitoring of seagrass and seaweed beds is indispensable for their conservation. Although satellite data are used for coastal zone monitoring, atmospheric effects on the satellite data degrades classification of habitats. Low altitude observations using UAV can avoid such atmospheric effects. Hyperspectral image data are a po werful tool for detection of seagrass and seaweed beds. Thus, we develop a hyperspectral imaging sensor and a UAV as a platform of the hyperspectral sensor for habitat mapping in coastal areas, especially, mapping seagrass and seaweed species. The hyperspectral imaging sensor developed by this study is designed to be light weight for payload and low cost for wide use,. The sensor scans an area and acquires data using optical fibers and swing mirror. Spectral data of a target ground or sea-surface are gathered at one side of optical fibers bundle. At the other side of optical fibers bundle, the spectral data are sequentially sent to optical fibers, which connected micro-spectrometer, by the swing mirror. The swing mirror is controlled by a stepping motor and the swing speed of the mirror is variable. Maximum eight micro-spectrometers manufactured by Hamamatsu Photonics are prepared. Each micro-spectrometer is connected optical fiber. One micro-spectrometer is used for sky light monitoring, and the other micro-spectrometers are used for spectral data of target earth surface. The total weight of the hyperspectral image sensor is less than 3kg. We are developing two types of UAV as the platform for the hyperspectral imaging sensor. One is an unmanned airplane with fixed wings (UAS) and other is a multi-copter type drone. We planed the unmanned airplane for the large area survey and the multi-copter for the sea truth data at small area.
机译：海草和海藻床起着非常重要的生态作用，例如为许多海洋生物提供产卵，育苗和觅食的场所。但是，它们对环境变化和人类影响敏感。海草和海藻床的海岸带监测对于保护它们是必不可少的。尽管将卫星数据用于沿海地区监视，但大气对卫星数据的影响会降低栖息地的分类。使用无人机进行低空观测可以避免这种大气影响。高光谱图像数据是检测海草和海藻床的强大工具。因此，我们开发了高光谱成像传感器和无人飞行器作为高光谱传感器的平台，用于沿海地区的栖息地制图，尤其是海草和海藻物种的制图。这项研究开发的高光谱成像传感器设计为重量轻，有效使用成本低。传感器扫描区域并使用光纤和后视镜获取数据。在光纤束的一侧收集目标地面或海面的光谱数据。在光纤束的另一侧，光谱数据通过后视镜依次发送到与微谱仪相连的光纤。旋转镜由步进电机控制，并且反射镜的旋转速度是可变的。最多可以准备八张Hamamatsu Photonics制造的微光谱仪。每个微谱仪都连接光纤。一个微型光谱仪用于天光监测，另一个微型光谱仪用于目标地面的光谱数据。高光谱图像传感器的总重量小于3kg。我们正在开发两种类型的无人机作为高光谱成像传感器的平台。一种是固定翼无人飞机（UAS），另一种是多直升机无人机。我们计划了无人驾驶飞机用于大面积调查，计划了多直升机用于小区域的海洋真相数据。

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