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DLP® DMD Technology: LIDAR ambient light reduction

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DLP® DMD Technology: LIDAR ambient light reduction

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  • Author: John Fenske, Terry Bartlett
A new development in LIDAR systems is the use of a Digital Micromirror Device (DMD) to filter out the ambient light from the photodetector. Such an addition can significantly improve the performance of the associated LIDAR system. This paper demonstrates how the DMD functions to filter ambient light, estimates the impact of the DMD on the signal-to-noise ratio (SNR) of the system, and relates that SNR improvement to improvements in range, resolution, field of view, and frame rate.

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