Research on high resolution spectral method of hyperspectral LiDAR

Feng Li; Chenghao Jiang; Jingguo Zhu; Menglin Li; Zhe Meng

doi:10.1117/12.2247441

25 October 2016 Research on high resolution spectral method of hyperspectral LiDAR

Feng Li, Chenghao Jiang, Jingguo Zhu, Menglin Li, Zhe Meng

Proceedings Volume 10156, Hyperspectral Remote Sensing Applications and Environmental Monitoring and Safety Testing Technology; 101561X (2016) https://doi.org/10.1117/12.2247441
Event: International Symposium on Optoelectronic Technology and Application 2016, 2016, Beijing, China

Abstract

Hyperspectral LiDAR using supercontinuum laser as light source, applying spectroscopic technology gets backscattered reflectance of different wavelengths, and can acquire both the geometry and spectral information on the target. Due to the development of the photoelectric sensor, hyperspectral LiDAR has fewer spectral channels, which limits its application in physical properties detection. To solve this problem, this paper proposes a new method based on the micro mirror array. By blaze grating, the supercontinuum laser is grating into monochromatic light in space, first projected to the micro mirror array, by controlling the micro mirror array flip, specific spectrum and reflection to corresponding photoelectric sensor channels, improve the spectral resolution. The micro mirror array photoelectric sensor resolution is much higher than the number of channels, through this method, can greatly improve the spectral resolution. In this paper, based on the micro mirror array, the simulation design is carried out and the feasibility of the method is verified by experiments. The simulation and experimental results show that the spectral resolution can be improved greatly by controlling the turning of the micro mirror.

Citation Download Citation

Feng Li, Chenghao Jiang, Jingguo Zhu, Menglin Li, and Zhe Meng "Research on high resolution spectral method of hyperspectral LiDAR", Proc. SPIE 10156, Hyperspectral Remote Sensing Applications and Environmental Monitoring and Safety Testing Technology, 101561X (25 October 2016); https://doi.org/10.1117/12.2247441

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