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Proceedings Paper

Advanced 3D imaging lidar concepts for long range sensing
Author(s): K. J. Gordon; P. A. Hiskett; R. A. Lamb
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Paper Abstract

Recent developments in 3D imaging lidar are presented. Long range 3D imaging using photon counting is now a possibility, offering a low-cost approach to integrated remote sensing with step changing advantages in size, weight and power compared to conventional analogue active imaging technology. We report results using a Geiger-mode array for time-of-flight, single photon counting lidar for depth profiling and determination of the shape and size of tree canopies and distributed surface reflections at a range of 9km, with 4μJ pulses with a frame rate of 100kHz using a low-cost fibre laser operating at a wavelength of λ=1.5 μm. The range resolution is less than 4cm providing very high depth resolution for target identification. This specification opens up several additional functionalities for advanced lidar, for example: absolute rangefinding and depth profiling for long range identification, optical communications, turbulence sensing and time-of-flight spectroscopy. Future concepts for 3D time-of-flight polarimetric and multispectral imaging lidar, with optical communications in a single integrated system are also proposed.

Paper Details

Date Published: 5 June 2014
PDF: 7 pages
Proc. SPIE 9114, Advanced Photon Counting Techniques VIII, 91140G (5 June 2014); doi: 10.1117/12.2051013
Show Author Affiliations
K. J. Gordon, SELEX ES Ltd. (United Kingdom)
P. A. Hiskett, SELEX ES Ltd. (United Kingdom)
R. A. Lamb, SELEX ES Ltd. (United Kingdom)

Published in SPIE Proceedings Vol. 9114:
Advanced Photon Counting Techniques VIII
Mark A. Itzler; Joe C. Campbell, Editor(s)

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