8 June 2011 Field tests of laser ranging using PRBS modulation techniques
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We have developed and tested an optical ranging system using a Pseudo-Random Bit Stream (PRBS) modulation technique. The optical transceiver consisted of an infrared laser transmitter co-aligned with a receiver telescope. The infrared laser beam was propagated to a retro-reflector and then received by a detector coupled to the telescope. The transceiver itself was mounted on a gimbal that could actively track moving targets through a camera that was bore sighted with the optical detector. The detected optical signal was processed in real time to produce a range measurement with sub mm accuracy. This system was tested in the field using both stationary and moving targets up to 5 km away. Ranging measurements to an aircraft were compared with results obtained by differential GPS (Global Positioning System) techniques.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
J. Kovalik, K. Wilson, M. Wright, W. Williamson, "Field tests of laser ranging using PRBS modulation techniques", Proc. SPIE 8037, Laser Radar Technology and Applications XVI, 80371C (8 June 2011); doi: 10.1117/12.882965; https://doi.org/10.1117/12.882965

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