Optimization of obscurant penetration with next generation lidar technology

Xiaoying Cao; Philip Church; Justin Matheson; Gilles Roy

doi:10.1117/12.2519023

2 May 2019 Optimization of obscurant penetration with next generation lidar technology

Xiaoying Cao, Philip Church, Justin Matheson, Gilles Roy

Proceedings Volume 11005, Laser Radar Technology and Applications XXIV; 110050R (2019) https://doi.org/10.1117/12.2519023
Event: SPIE Defense + Commercial Sensing, 2019, Baltimore, MD, United States

Abstract

Neptec Technologies’ next generation OPAL 3D LiDAR uses multi-detection technology for penetrating obscurants to detect objects. This multi-returns LiDAR system can receive up to 7 returns from one single laser pulse. Based on a Risley prism scanning mechanism, the OPAL Performance Series (Third Generation), employs independent motor control to spin both prisms and generate optimized scan patterns with customized fields-of-view from 30° to 120°. The OPAL-P500 was recently evaluated to detect specific objects of various reflective indices within a controlled obscurant chamber capable of generating a number of aerosol obscurants. Obscurants used in this investigation include: Arizona road dust and water fog. The obscurant cloud optical densities were monitored using a transmissometer. A series of six mesh screens were placed in the chamber, with solid targets at the far end of the chamber and with no obscurants present in the air. In this test scenario, the number of return pulses and their relative strengths were validated from a single laser pulse/shot. These meshes were placed at various distances from each other to characterize the detection probabilities in clear conditions. Alternatively the meshes were removed and the solid targets remained at the back of the chamber to validate the OPAL-P500 target detection performance in obscurants of varying densities. The data from a number of testing scenarios will be presented to observe and analyze the effects of obscurants and target reflectivity using the OPAL-P500’s multi-returns LiDAR technology.

Conference Presentation

Citation Download Citation

Xiaoying Cao, Philip Church, Justin Matheson, and Gilles Roy "Optimization of obscurant penetration with next generation lidar technology", Proc. SPIE 11005, Laser Radar Technology and Applications XXIV, 110050R (2 May 2019); https://doi.org/10.1117/12.2519023

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