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Proceedings Paper

Atmospheric turbulence effects in single-photon counting time-of-flight range profiling
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Paper Abstract

In several laser radar applications detection of targets with high resolution and range accuracy, is of importance. Time-of-flight time-correlated single-photon counting (TCSPC) provides a method to accomplish range profiling at longer ranges with high accuracy and resolution. The performance of a TCSPC system used for optical range profiling suffers from the influence of atmospheric turbulence effects causing perturbations of the registered time histograms. This is mostly manifested in propagation paths close to the ground. In this work a TCSPC system based on a monostatic transmitter/receiver head, a picosecond laser operating at high pulse-repetition frequency, a single photon detector and acquisition electronics with high timing resolution was used to study the influence from atmospheric turbulence on registered pulse responses from test targets. The turbulence conditions were monitored during the experiments and the influence from turbulence effects on the pulse response are discussed. The experimental results are considered in relation to existing turbulence models. Implications on system performance for a TCSPC time-of-flight range profiling system are illustrated.

Paper Details

Date Published: 2 October 2008
PDF: 12 pages
Proc. SPIE 7115, Technologies for Optical Countermeasures V, 71150G (2 October 2008); doi: 10.1117/12.800241
Show Author Affiliations
Lars Sjöqvist, FOI-Swedish Defence Research Agency (Sweden)
Christina Grönwall, FOI-Swedish Defence Research Agency (Sweden)
Markus Henriksson, FOI-Swedish Defence Research Agency (Sweden)
Per Jonsson, FOI-Swedish Defence Research Agency (Sweden)
Ove Steinvall, FOI-Swedish Defence Research Agency (Sweden)

Published in SPIE Proceedings Vol. 7115:
Technologies for Optical Countermeasures V
David H. Titterton; Mark A. Richardson, Editor(s)

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