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Proceedings Paper

Mapping of ice, snow and water using aircraft-mounted LiDAR
Author(s): Philip Church; Justin Matheson; Brett Owens
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Paper Abstract

Neptec Technologies Corp. has developed a family of obscurant-penetrating 3D laser scanners (OPAL 2.0) that are being adapted for airborne platforms for operations in Degraded Visual Environments (DVE). The OPAL uses a scanning mechanism based on the Risley prism pair. Data acquisition rates can go as high as 200kHz for ranges within 240m and 25kHz for ranges exceeding 240m. The scan patterns are created by rotating two prisms under independent motor control producing a conical Field-Of-View (FOV). An OPAL laser scanner with 90° FOV was installed on a Navajo aircraft, looking down through an aperture in the aircraft floor. The rotation speeds of the Risley prisms were selected to optimize a uniformity of the data samples distribution on the ground. Flight patterns simulating a landing approach over snow and ice in an unprepared Arctic environment were also performed to evaluate the capability of the OPAL LiDAR to map snow and ice elevation distribution in real-time and highlight potential obstacles. Data was also collected to evaluate the detection of wires when flying over water, snow and ice. Main results and conclusions obtained from the flight data analysis are presented.

Paper Details

Date Published: 13 May 2016
PDF: 9 pages
Proc. SPIE 9839, Degraded Visual Environments: Enhanced, Synthetic, and External Vision Solutions 2016, 98390L (13 May 2016); doi: 10.1117/12.2223172
Show Author Affiliations
Philip Church, Neptec Technologies Corp. (Canada)
Justin Matheson, Neptec Technologies Corp. (Canada)
Brett Owens, Neptec Technologies Corp. (Canada)

Published in SPIE Proceedings Vol. 9839:
Degraded Visual Environments: Enhanced, Synthetic, and External Vision Solutions 2016
Jack Sanders-Reed; Jarvis J. Arthur III, Editor(s)

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