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Proceedings Paper

A photon-counting time-of-flight ranging technique developed for the avoidance of range ambiguity at gigahertz clock rates
Author(s): Philip A. Hiskett; Aongus McCarthy; Robert Lamb; Gerald S. Buller
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Paper Abstract

This paper describes a rapid data acquisition photon-counting time-of-flight ranging technique that is designed for the avoidance of range ambiguity, an issue commonly found in high repetition frequency timeof- flight systems. The technique transmits a non-periodic pulse train based on the random bin filling of a high frequency time clock. A received pattern is formed from the arrival times of the returning single photons and the correlation between the transmitted and received patterns was used to identify the unique target timeof- flight. The paper describes experiments in free space at over several hundred meters range at clock frequencies of 1GHz. Unambiguous photon-counting range-finding is demonstrated with centimeter accuracy.

Paper Details

Date Published: 28 April 2009
PDF: 9 pages
Proc. SPIE 7320, Advanced Photon Counting Techniques III, 732002 (28 April 2009); doi: 10.1117/12.818455
Show Author Affiliations
Philip A. Hiskett, Heriot-Watt Univ. (United Kingdom)
Selex Galileo (United Kingdom)
Aongus McCarthy, Heriot-Watt Univ. (United Kingdom)
Robert Lamb, Selex Galileo (United Kingdom)
Gerald S. Buller, Heriot-Watt Univ. (United Kingdom)

Published in SPIE Proceedings Vol. 7320:
Advanced Photon Counting Techniques III
Mark A. Itzler; Joe C. Campbell, Editor(s)

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