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Assessment of helicopter brownout with a scanning lidar

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Abstract

There is very few quantitative data on Degraded Visual Environments (DVE) generated by the downwash of Rotary-Wing Platforms (RWP). In order to better understand the dynamics of DVE-RWP, we have used a scanning lidar to measure the cloud dimensions and optical depths generated by a helicopter hovering close to ground. It is shown that scanning lidar is a remarkable tool for quantifying DVE-RWP for low to moderate obscurations.

© 2012 Optical Society of America

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