A two-hydrophone range and bearing localization algorithm with performance analysis

The Journal of the Acoustical Society of America
John GebbieJohn S Allen

Abstract

An automated, passive algorithm for detecting and localizing small boats using two hydrophones mounted on the seabed is outlined. This extends previous work by Gebbie et al. [(2013). J. Acoust. Soc. Am. 134, EL77 - EL83] in which a similar two-hydrophone approach is used to produce an ambiguity surface of likely target locations leveraging multipath analysis and knowledge of the local bathymetry. The work presented here improves upon the prior approach using particle filtering to automate detection and localization processing. A detailed analysis has also been conducted to determine the conditions and limits under which the improved approach can be expected to yield accurate range and unambiguous bearing information. Experimental results in 12 m of water allow for a comparison of different separation distances between hydrophones, and the Bayesian Cramér-Rao lower bound is used to extrapolate the performance expected in 120 m water. This work demonstrates the conditions under which a low cost, passive, sparse array of hydrophones can provide a meaningful small boat detection and localization capability.

References

Jun 1, 2000·The Journal of the Acoustical Society of America·R AubauerW W Au
Aug 7, 2004·The Journal of the Acoustical Society of America·Aaron Thode
Oct 31, 2006·The Journal of the Acoustical Society of America·Christopher O TiemannKendall Folkert
Jun 21, 2011·The Journal of the Acoustical Society of America·Rashi Jain, Zoi-Heleni Michalopoulou
Nov 14, 2012·The Journal of the Acoustical Society of America·Zoi-Heleni Michalopoulou, Rashi Jain
Feb 1, 2013·The Journal of the Acoustical Society of America·Michelle J WeirathmuellerDax C Soule
Jul 19, 2013·The Journal of the Acoustical Society of America·John GebbieGrant Pusey

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Citations

Jan 3, 2020·The Journal of the Acoustical Society of America·Elizaveta DubrovinskayaRoee Diamant
Mar 3, 2019·The Journal of the Acoustical Society of America·Rui DuanYuanliang Ma
Aug 5, 2018·The Journal of the Acoustical Society of America·Rui DuanYuanliang Ma
Jan 31, 2021·The Journal of the Acoustical Society of America·Hui LiRui Duan
Sep 3, 2021·The Journal of the Acoustical Society of America·Yvonne M BarkleyErin M Oleson

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