High accuracy 3D laser radar

Jens Busck; Henning Heiselberg

doi:10.1117/12.545397

13 September 2004 High accuracy 3D laser radar

Jens Busck, Henning Heiselberg

Proceedings Volume 5412, Laser Radar Technology and Applications IX; (2004) https://doi.org/10.1117/12.545397
Event: Defense and Security, 2004, Orlando, Florida, United States

Abstract

We have developed a mono-static staring 3-D laser radar based on gated viewing with range accuracy below 1 mm at 10 m and 1 cm at 100 m. We use a high sensitivity, fast, intensified CCD camera, and a Nd:YAG passively Q-switched 32.4 kHz pulsed green laser at 532 nm. The CCD has 752×582 pixels. Camera shutter is controlled in steps of 100 ps. Camera delay is controlled in step of 100 ps. Each laser pulse triggers the camera delay and shutter. A 3-D image is constructed from a sequence of 50-100 2-D reflectivity images, where each frame integrates ~700 laser pulses on the CCD. In 50 Hz video mode we record a 2-D sequence in a second and process a 3-D image in few seconds. We compare 3-D images with a system performance model.

Citation Download Citation

Jens Busck and Henning Heiselberg "High accuracy 3D laser radar", Proc. SPIE 5412, Laser Radar Technology and Applications IX, (13 September 2004); https://doi.org/10.1117/12.545397

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