Outline • LiDAR Overview • Physics of light interaction with obscurants • OPAL LiDAR technology for the penetration of Degraded Visual Environments (DVE) • DVE penetration performance examples • Field tests examples • Conclusions
LiDAR Overview Time-of-Flight LiDAR Principle of Operation • •
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A pulse of light is emitted. The reflection of that pulse is detected and the time-of-flight ‘t’ is measured. Using the speed of light c, the delay can be converted into a distance R. 𝑐𝜏 𝑅= 2 Knowing the position and orientation of the sensor, the XYZ coordinate of the reflective surface can be calculated. Main Components:
– Pulsed laser – Detector – Mechanism to steer the beam within a designated Field-Of-View