Enhancing real-time 3D tracking of acoustic targets using elevated microphones and environmental parameter effects

Jay E. Williams; Chad M. Williams; William G. Frazier

doi:10.1117/12.500689

18 September 2003 Enhancing real-time 3D tracking of acoustic targets using elevated microphones and environmental parameter effects

Jay E. Williams, Chad M. Williams, William G. Frazier

Author Affiliations +

Proceedings Volume 5090, Unattended Ground Sensor Technologies and Applications V; (2003) https://doi.org/10.1117/12.500689
Event: AeroSense 2003, 2003, Orlando, Florida, United States

Abstract

Networks of unattended acoustic ground sensors can be used to detect and accurately track high-speed airborne acoustic sources. While it is possible, in principle, to estimate altitude using networks of two-dimensional microphone arrays, the high sensitivity of this configuration significantly limits performance. This work shows that the addition of elevated microphones and appropriate signal processing can significantly improve performance. Airborne source tracking results from a field experiment are compared for the use of a small orthogonal three-microphone ground plane array versus the same array with an elevated microphone added.

Citation Download Citation

Jay E. Williams, Chad M. Williams, and William G. Frazier "Enhancing real-time 3D tracking of acoustic targets using elevated microphones and environmental parameter effects", Proc. SPIE 5090, Unattended Ground Sensor Technologies and Applications V, (18 September 2003); https://doi.org/10.1117/12.500689

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available