26 October 2010 Optical rangefinding applications using communications modulation technique
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Abstract
A novel range detection technique combines optical pulse modulation patterns with signal cross-correlation to produce an accurate range estimate from low power signals. The cross-correlation peak is analyzed by a post-processing algorithm such that the phase delay is proportional to the range to target. This technique produces a stable range estimate from noisy signals. The advantage is higher accuracy obtained with relatively low optical power transmitted. The technique is useful for low cost, low power and low mass sensors suitable for tactical use. The signal coding technique allows applications including IFF and battlefield identification systems.
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William D. Caplan, William D. Caplan, Christopher John Morcom, Christopher John Morcom, } "Optical rangefinding applications using communications modulation technique", Proc. SPIE 7833, Unmanned/Unattended Sensors and Sensor Networks VII, 78330B (26 October 2010); doi: 10.1117/12.864966; https://doi.org/10.1117/12.864966
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