世界核地质科学2024，Vol.41Issue(4)：780-791,12.DOI:10.3969/j.issn.1672-0636.2024.04.013
可见光-近红外无人机载高光谱成像仪设计与验证
Design and validation of visible-near infrared hyperspectral imager for UAV
摘要
Abstract
In order to overcome the short come of high cost imported UAV hyperspectral imager,low shooting efficiency and accuracy of object classification of hyperspectral remote sensing,this paper developed a domestic light and small visibal-near infrared(VNIR)hyperspectral imager suitable for multi-rotor Unmanned Aerial Vehicle(UAV).The MTF of the full band and field of view at the cutoff frequency is higher than 0.83.The spectral resolution is better than 2.8nm.The system is integrated with the imager,multi-rotor UAV,power supply,POS/IMU and stable platform.The imager was validated in Nanhu Village of Poyang Lake and the northwest part of Yangzhuang Pluton in Xinjiang.The pixel curve obtained from Nanhu Village of Poyang Lake was compared with the synchronously measured spectra of ASD ground spectrometer,It was found that the spectra of the hyperspectral images obtained by UAV imager were in good agreement with the spectra of typical ground objects synchronously measured by ASD ground spectrometer.The experimental results of spectral reconstruction and spectral Angle classification show that the spectral curve obtained by the UAV imager is in good agreement with the ground measurement.The comparison of the true color image of the northwestern part of Yangzhuang pluton by the airbore CASI hyperspectral image,the identified hematite to that of the UAV hyperspectral imager also show good agreement and application effect in higher resolution geological mapping.In short,the light and small visible light near-infrared hyperspectral imager developed in this paper can provide a new technical means for the investigation of geology,ecological environment and other fields in China.关键词
高光谱成像仪/无人机载高光谱成像仪系统/旋翼无人机Key words
hyperspectral imager/UAV mounted hyperspectral imager system/rotor UAV分类
天文与地球科学引用本文复制引用
鲁纳川..可见光-近红外无人机载高光谱成像仪设计与验证[J].世界核地质科学,2024,41(4):780-791,12.基金项目
中核集团集中研发项目"第四代铀矿勘查关键技术研究与示范"(第一阶段)项目:"新型关键勘查技术装备研制"(编号:遥SD03-03)资助 Supported by China National Nuclear Corporation(No.遥 SD03-03) （第一阶段）
