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Target-depth estimation in active sonar: Cramer-Rao bounds for a bilinear sound-speed profile.
- Source :
-
The Journal of the Acoustical Society of America [J Acoust Soc Am] 2016 Sep; Vol. 140 (3), pp. 1771. - Publication Year :
- 2016
-
Abstract
- This paper develops a localization method to estimate the depth of a target in the context of active sonar, at long ranges. The target depth is tactical information for both strategy and classification purposes. The Cramer-Rao lower bounds for the target position as range and depth are derived for a bilinear profile. The influence of sonar parameters on the standard deviations of the target range and depth are studied. A localization method based on ray back-propagation with a probabilistic approach is then investigated. Monte-Carlo simulations applied to a summer Mediterranean sound-speed profile are performed to evaluate the efficiency of the estimator. This method is finally validated on data in an experimental tank.
Details
- Language :
- English
- ISSN :
- 1520-8524
- Volume :
- 140
- Issue :
- 3
- Database :
- MEDLINE
- Journal :
- The Journal of the Acoustical Society of America
- Publication Type :
- Academic Journal
- Accession number :
- 27914421
- Full Text :
- https://doi.org/10.1121/1.4962495