Abstract
LiDAR, also known as light detection and ranging, has seen rapid development ever since people started to first use laser for optical distance measurement. In the field of military application, for instance ranging and weapon guidance, multi-spectral laser imaging systems with high range resolution, single photon sensitive arrays, and wide emission spectral sections have been intensively developed. These systems are immune to weather and can penetrate through foliage, clothes and dense media for target recognition, and optical coherence tomography of the building to reconstruct its three-dimensional structure. Multi-dimensional measurements are primarily limited by laser power, computational processing efficiency, incoherent and coherent focal plane arrays, and signal processors. In the field of civilian application, advanced LiDAR is used to measure the optical parameters and elements of the wind, temperature, atmosphere and cloud, as well as, sea ice and sea surface measurements for the environmental research. Imaging and mapping are also important areas of LiDAR applications. Amongst the different types of LiDAR, the synthetic aperture LiDAR has a long development cycle and has been tested in principle-based experiments. For instance, coherent LiDAR, azimuth and angle measurement LiDAR, multi-spectral LiDAR, etc., play an important role in the practical application of precise speed, angle and spectrum measurement. Micro-laser is also widely used in ophthalmology research and treatment because it can map the refractive properties of the human eye.
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© 2021 Huazhong University of Science and Technology Press and Springer Nature Singapore Pte Ltd.
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Bi, X. (2021). LiDAR Technology. In: Environmental Perception Technology for Unmanned Systems. Unmanned System Technologies. Springer, Singapore. https://doi.org/10.1007/978-981-15-8093-2_3
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DOI: https://doi.org/10.1007/978-981-15-8093-2_3
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