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Proceedings Paper

Supersonic projectile models for asynchronous shooter localization
Author(s): Richard J. Kozick; Gene T. Whipps; Joshua N. Ash
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Paper Abstract

In this work we consider the localization of a gunshot using a distributed sensor network measuring time differences of arrival between a firearm's muzzle blast and the shockwave induced by a supersonic bullet. This so-called MB-SW approach is desirable because time synchronization is not required between the sensors, however it suffers from increased computational complexity and requires knowledge of the bullet's velocity at all points along its trajectory. While the actual velocity profile of a particular gunshot is unknown, one may use a parameterized model for the velocity profile and simultaneously fit the model and localize the shooter. In this paper we study efficient solutions for the localization problem and identify deceleration models that trade off localization accuracy and computational complexity. We also develop a statistical analysis that includes bias due to mismatch between the true and actual deceleration models and covariance due to additive noise.

Paper Details

Date Published: 12 May 2011
PDF: 15 pages
Proc. SPIE 8046, Unattended Ground, Sea, and Air Sensor Technologies and Applications XIII, 804604 (12 May 2011); doi: 10.1117/12.884700
Show Author Affiliations
Richard J. Kozick, Bucknell Univ. (United States)
Gene T. Whipps, U.S. Army Research Lab. (United States)
Joshua N. Ash, The Ohio State Univ. (United States)

Published in SPIE Proceedings Vol. 8046:
Unattended Ground, Sea, and Air Sensor Technologies and Applications XIII
Edward M. Carapezza, Editor(s)

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