The Use of a Quadcopter-Mounted Hyper-Spectral Spectrometer for Examining Reflectance in Scottish Coastal Waters
The Use of a Quadcopter-Mounted Hyper-Spectral Spectrometer for Examining Reflectance in Scottish Coastal Waters
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DOI：
10.1109/igarss.2018.8519580
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发表时间：
2018-07
期刊：
影响因子：
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通讯作者：
R. Weeks;P. Anderson;K. Davidson;D. McKee
中科院分区：
文献类型：
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作者：
R. Weeks;P. Anderson;K. Davidson;D. McKee
海洋沿海环境的遥感对获取有关其内部发生的过程的信息是有用的。在对有人驾驶飞机和卫星等远程技术的投资增加之前，监测传统上是在现场进行的。本文建议使用遥控飞机系统（RPAS）作为替代平台，目的是提高数据的光谱、空间和时间分辨率，同时降低相关成本和风险。苏格兰海洋科学协会（SAMS）在奥本市开发了一种定制的“光谱直升机”系统，该系统由专用四轴飞行器上的集成双视场、小型化高光谱光谱仪组成。这是为了调查苏格兰沿海水域的反射率，这可以推断出各种成分的浓度，[1],[2]。初步试飞表明，“光谱直升机”系统能够飞行20分钟，足以进行有意义的数据收集，尽管后期调整会导致重量增加和效率降低。早期结果表明，该装置能够在高光谱分辨率下识别$R$的差异。目前正在进行进一步的工作，以评估将这一设备作为监测沿海有害藻华的常规技术的能力，目前这种监测依靠实物抽样与卫星相结合。据注意，赤潮事件的严重程度和频率都在增加，对健康和经济产生了连锁影响，特别是对苏格兰沿海水域日益增长的水产养殖业。因此，发展一种可替代的、负担得起的技术将是非常有益的。
Remote sensing of the marine coastal environment is useful for obtaining information about processes occurring within it. Monitoring has traditionally been carried out in situ, before investment increased in remote techniques such as manned planes and satellites. This paper proposes the use of remotely piloted aircraft systems (RPAS) as an alternative platform, with an aim of increasing the spectral, spatial and temporal resolution of data whilst reducing the associated costs and risks. A custom-built ‘spectro-copter’ system, comprising of an integrated dual field-of-view, miniaturised, hyper-spectral spectrometer aboard a purpose-built quadcopter is presented, developed at the Scottish Association for Marine Science (SAMS), Oban. This has been produced with a view to investigating reflectance from Scottish coastal waters, which can give inferences as to the concentrations of various constituents present [1], [2]. Initial test flights show the ‘spectro-copter’ system is capable of flights of $\sim 20$ minutes, sufficient for meaningful data collection, despite late adjustments incurring increased weight and an associated reduction in efficiency. Early results demonstrate that the setup is capable of discerning differences in $R$ at a high spectral resolution. Further work is ongoing in order to assess the capacity for establishing this equipment as a routine technique for the monitoring of coastal harmful algal blooms (HAB), which currently relies upon physical sampling in combination with satellites. HAB events are noted to be increasing in severity and frequency [3], [4], with knock-on health and economic impacts, particularly for the rising aquaculture industry in Scottish coastal waters [5]. Therefore advancement of an alternative, affordable technique would be extremely beneficial.