8 June 2011 Field tests of laser ranging using PRBS modulation techniques
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Abstract
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.
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J. Kovalik, J. Kovalik, K. Wilson, K. Wilson, M. Wright, M. Wright, W. Williamson, 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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