Characterization of the OPAL LiDAR under controlled obscurant conditions

Xiaoying Cao; Philip Church; Justin Matheson

doi:10.1117/12.2222175

13 May 2016 Characterization of the OPAL LiDAR under controlled obscurant conditions

Xiaoying Cao, Philip Church, Justin Matheson

Proceedings Volume 9839, Degraded Visual Environments: Enhanced, Synthetic, and External Vision Solutions 2016; 98390I (2016) https://doi.org/10.1117/12.2222175
Event: SPIE Defense + Security, 2016, Baltimore, MD, United States

Abstract

Neptec Technologies’ OPAL-120 3D LiDAR is optimized for obscurant penetration. The OPAL-120 uses a scanning mechanism based on the Risley prism pair. The scan patterns are created by rotating two prisms under independent motor control. The geometry and material properties of the prisms define the conical field-of-view of the sensor, which can be built to between 60 to 120 degrees. The OPAL-120 was recently evaluated using a controlled obscurant chamber capable of generating clouds of obscurants over a depth of 22m. Obscurants used in this investigation include: Arizona road dust, water fog, and fog-oil. The obscurant cloud optical densities were monitored with a transmissometer. Optical depths values ranged from an upper value of 6 and progressively decreased to 0. Targets were positioned at the back of the obscurant chamber at a distance of 60m from the LiDAR. The targets are made of a foreground array of equally spaced painted wood stripes in front of a solid background. Reflectivity contrasts were achieved with foreground/background combinations of white/white, white/black and black/white. Data analysis will be presented on the effect of optical densities on range and cross-range resolution, and accuracy. The analysis includes the combinations of all obscurant types and target reflectivity contrasts.

Citation Download Citation

Xiaoying Cao, Philip Church, and Justin Matheson "Characterization of the OPAL LiDAR under controlled obscurant conditions", Proc. SPIE 9839, Degraded Visual Environments: Enhanced, Synthetic, and External Vision Solutions 2016, 98390I (13 May 2016); https://doi.org/10.1117/12.2222175

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available