Advanced compact 3D lidar using a high speed fiber coupled pulsed laser diode and a high accuracy timing discrimination readout circuit

MinGu Lee; SeungHo Baeg

doi:10.1117/12.923640

23 May 2012 Advanced compact 3D lidar using a high speed fiber coupled pulsed laser diode and a high accuracy timing discrimination readout circuit

MinGu Lee, SeungHo Baeg

Author Affiliations +

Proceedings Volume 8379, Laser Radar Technology and Applications XVII; 83790Z (2012) https://doi.org/10.1117/12.923640
Event: SPIE Defense, Security, and Sensing, 2012, Baltimore, Maryland, United States

Abstract

At last year, we have been developing 3D scanning LIDAR designated as KIDAR-B25, which features the 3D scanning structure based on an optically and mechanically coupled instrument. In contrast with previous scanning LIDARs, vertical scanning is realized using two stepping motors synchronized with movement and moves in a spiral. From the results of outdoor experiments conducted last year to evaluate and measure the LIDAR performance and stability, we identified some limitations and problems that should be resolved. In the first instance, the samples per second are inefficient for use in detection, object clustering, and classification. In addition, the accuracy and precision of distance at every point is seriously affected by the reflectance and distance of the target. Therefore, we have focused on improving the 3D LIDAR range finding performance, speed of measurement, and stability regardless of environmental variation. Toward the realization of these goals, in this paper, we deal with two improvements compared with previous 3D LIDAR.

Citation Download Citation

MinGu Lee and SeungHo Baeg "Advanced compact 3D lidar using a high speed fiber coupled pulsed laser diode and a high accuracy timing discrimination readout circuit", Proc. SPIE 8379, Laser Radar Technology and Applications XVII, 83790Z (23 May 2012); https://doi.org/10.1117/12.923640

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