A photon-counting time-of-flight ranging technique developed for the avoidance of range ambiguity at gigahertz clock rates

Philip A. Hiskett; Aongus McCarthy; Robert Lamb; Gerald S. Buller

doi:10.1117/12.818455

28 April 2009 A photon-counting time-of-flight ranging technique developed for the avoidance of range ambiguity at gigahertz clock rates

Philip A. Hiskett, Aongus McCarthy, Robert Lamb, Gerald S. Buller

Author Affiliations +

Proceedings Volume 7320, Advanced Photon Counting Techniques III; 732002 (2009) https://doi.org/10.1117/12.818455
Event: SPIE Defense, Security, and Sensing, 2009, Orlando, Florida, United States

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.

Citation Download Citation

Philip A. Hiskett, Aongus McCarthy, Robert Lamb, and Gerald S. Buller "A photon-counting time-of-flight ranging technique developed for the avoidance of range ambiguity at gigahertz clock rates", Proc. SPIE 7320, Advanced Photon Counting Techniques III, 732002 (28 April 2009); https://doi.org/10.1117/12.818455

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