High-precision laser range measurements using convolution and deconvolution of reflected pulses

Tanja N. Dreischuh; Dimitar V. Stoyanov; Orlin I. Vankov; Georgi V. Kolarov

doi:10.1117/12.519506

4 November 2003 High-precision laser range measurements using convolution and deconvolution of reflected pulses

Tanja N. Dreischuh, Dimitar V. Stoyanov, Orlin I. Vankov, Georgi V. Kolarov

Proceedings Volume 5226, 12th International School on Quantum Electronics: Laser Physics and Applications; (2003) https://doi.org/10.1117/12.519506
Event: 12th International School on Quantum Electronics Laser Physics and Applications, 2002, Varna, Bulgaria

Abstract

A novel high-precision pulsed ranging method is developed. It involves preliminary transformation of photon detector signals (convolution), analog-to-digital sampling, software processing by deconvolution, digital filtering, pulse shape retrieving and pulse center determination. The method is effective for arbitrary pulse durations (shorter or larger than the sampling step) and is low sensitive to the shapes of the reflected pulses. Using 20 MHz/8bits ADC, an experimental timing accuracy is achieved of approximately 600 ps (approximately 10^-2 times the ADC-sampling step) for single measurements and of approximately 30 - 50 ps (approximately 10^-3 - 10^-4 times the sampling step) in averaging regime.

Citation Download Citation

Tanja N. Dreischuh, Dimitar V. Stoyanov, Orlin I. Vankov, and Georgi V. Kolarov "High-precision laser range measurements using convolution and deconvolution of reflected pulses", Proc. SPIE 5226, 12th International School on Quantum Electronics: Laser Physics and Applications, (4 November 2003); https://doi.org/10.1117/12.519506

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