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Title: Comparison of lidar's characteristics at different flying height
Authors: Ding, Q
Chen, W 
King, B 
Liu, YX
Keywords: Earth's atmosphere
Issue Date: 2011
Publisher: SPIE-International Society for Optical Engineering
Source: Proceedings of SPIE : the International Society for Optical Engineering, 2011, v. 8421, 828607 How to cite?
Journal: Proceedings of SPIE : the International Society for Optical Engineering 
Abstract: As the cost of LiDAR equipment is high and different projects prefer different goals, the flying scheme needs to be strict planned to save cost and energy. In this study, LiDAR's ability at different flying height was tested. Two trials with different flying height are compared. Analysis was conducted by considering the relative accuracy, intensity and penetration ability to find out the difference of two trials. The result shows the relative accuracy between these two trials is 0.37 m. True relative accuracy is achieved when removing canopy as large interpolation errors often exist at places with great slope changes like the canopy. Intensity values decrease greatly with the increase of flying height due to the longer travel distance and more energy loss in atmosphere. Statistical results showed that in each trial high intensity is apt to be from low canopy and only return. LiDAR vegetation penetration ability decreased greatly at low vegetation due to the enlarged footprint and weakened energy, but it doesn't change on large vegetation.
Description: International Symposium on Lidar and Radar Mapping 2011: Technologies and Applications, China, 26-28 May, 2011
ISSN: 0277-786X
EISSN: 1996-756X
DOI: 10.1117/12.912611
Appears in Collections:Conference Paper

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