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Proceedings Paper

Design and performance of a fiber array coupled multi-channel photon counting, 3D imaging, airborne lidar system
Author(s): Genghua Huang; Rong Shu; Libing Hou; Ming Li
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Paper Abstract

Photon counting lidar has an ultra-high sensitivity which can be hundreds even thousands of times higher than the linear detection lidar. It can significantly increase the system’s capability of detection rang and imaging density, saving size and power consumings in airborne or space-borne applications. Based on Geiger-mode Si avalanche photodiodes (Si-APD), a prototype photon counting lidar which used 8 APDs coupled with a 1×8-pixel fiber array has been made in June, 2011. The experiments with static objects showed that the photon counting lidar could operate in strong solar background with 0.04 receiving photoelectrons on average. Limited by less counting times in moving platforms, the probability of detection and the 3D imaging density would be lower than that in static platforms. In this paper, a latest fiber array coupled multi-channel photon counting, 3D imaging, airborne lidar system is introduced. The correlation range receiver algorithm of photon counting 3D imaging is improved for airborne signal photon events extraction and noise filter. The 3D imaging experiments in the helicopter shows that the false alarm rate is less than 6×10-7, and the correct rate is better than 99.9% with 4 received photoelectrons and 0.7MHz system noise on average.

Paper Details

Date Published: 9 June 2014
PDF: 9 pages
Proc. SPIE 9080, Laser Radar Technology and Applications XIX; and Atmospheric Propagation XI, 90800F (9 June 2014); doi: 10.1117/12.2050191
Show Author Affiliations
Genghua Huang, Shanghai Institute of Technical Physics (China)
Rong Shu, Shanghai Institute of Technical Physics (China)
Libing Hou, Shanghai Institute of Technical Physics (China)
Ming Li, Shanghai Institute of Technical Physics (China)


Published in SPIE Proceedings Vol. 9080:
Laser Radar Technology and Applications XIX; and Atmospheric Propagation XI
Monte D. Turner; Linda M. Wasiczko Thomas; Gary W. Kamerman; Earl J. Spillar, Editor(s)

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