Study on the influence factors of hyperspectral lidar angle

As a new type of remote sensing equipment, hyperspectral lidar combines the advantages of lidar and hyperspectral imaging technology into one device, and at the same time obtains the three-dimensional spatial information and the surface reflection spectrum intensity information, which is increasingly used in the extraction of thematic information. However, various factors have a significant effect on the surface reflection intensity. As one of the influencing factors, the influence of the incident angle has not been fully studied. Since traditional remote sensing detection equipment only considers single-channel intensity correction, the relevant conclusions cannot be directly applied to the spectral intensity correction of hyperspectral lidar. Therefore, it is necessary to carry out multi-channel angle effect analysis and research on hyperspectral lidar to achieve multi-channel spectral intensity correction. In the laboratory environment, the effect of the incident angle on the reflection intensity of each channel of the hyperspectral lidar is studied, and the angle effect model is established and corrected.