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设计并实现了一套基于轻小型直升无人机的高光谱遥感成像系统。该系统包括高光谱成像,采集存储,姿态和位置测量及地面监视控制等部分。在烟台和扬州分别进行了两次飞行实验,获取了高分辨率的高光谱数据。分析了该系统在无人机平台上工作的性能。对实验数据分析后,发现平台姿态和位置的变化对地物目标的光谱信息无明显的影响,但对几何特性有明显影响,实验中平台的振动导致图像在横向有4个像元的抖动。最后利用POS数据对图像数据进行了几何校正,并分析了校正误差的来源。
A set of hyperspectral remote sensing imaging system based on light mini helicopter is designed and implemented. The system includes hyperspectral imaging, acquisition and storage, attitude and position measurement and ground surveillance control and other parts. Two flight experiments were conducted in Yantai and Yangzhou, respectively, and high-resolution hyperspectral data were obtained. The performance of the system working on the UAV platform is analyzed. After analyzing the experimental data, it is found that the change of the attitude and position of the platform has no obvious influence on the spectral information of the object, but has obvious influence on the geometric properties. The vibration of the platform in the experiment results in 4 pixel shakes in the horizontal direction. At last, the image data is geometrically corrected by POS data, and the source of the correction error is analyzed.