Collection and processing of acoustic and seismic array data for source localization

S. Asgari; J. Z. Stafsudd; C. E. Chen; A. Ali; R. E. Hudson; D. Whang; F. Lorenzelli; K. Yao; E. Taciroglu

doi:10.1117/12.618139

16 September 2005 Collection and processing of acoustic and seismic array data for source localization

S. Asgari, J. Z. Stafsudd, C. E. Chen, A. Ali, R. E. Hudson, D. Whang, F. Lorenzelli, K. Yao, E. Taciroglu

Proceedings Volume 5910, Advanced Signal Processing Algorithms, Architectures, and Implementations XV; 59100A (2005) https://doi.org/10.1117/12.618139
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

Abstract

Distributed sensor networks have been proposed for a wide range of applications. In this paper, our goal is to locate a wideband source, generating both acoustic and seismic signals, using both seismic and acoustic sensors. For a far-field acoustic source, only the direction-of-arrival (DOA) in the coordinate system of the sensors is observable. We use the approximate Maximum-Likelihood (AML) method for DOA estimations from severalacoustic arrays. For a seismic source, we use data collected at a single tri-axial accelerometer to perform DOA estimation. Two seismic DOA estimation methods, the eigen-decomposition of the sample covariance matrix method and the surface wave method are used. Field measurements of acoustic and seismic signals generated by vertically striking a heavy metal plate placed on the ground in an open field are collected. Each acoustic array uses four low-cost microphones placed in a square configuration and separated by one meter. The microphone outputs of each array are collected by a synchronized A/D recording system and processed locally based on the AML algorithm for DOA estimation. An array of six tri-axial accelerometers arranged in two rows whose outputs are fed into an ultra low power and high resolution network-aware seismic recording system. Field measured data from the acoustic and seismic arrays show the estimated DOAs and consequent localizations of the source are quite accurate and useful.

Citation Download Citation

S. Asgari, J. Z. Stafsudd, C. E. Chen, A. Ali, R. E. Hudson, D. Whang, F. Lorenzelli, K. Yao, and E. Taciroglu "Collection and processing of acoustic and seismic array data for source localization", Proc. SPIE 5910, Advanced Signal Processing Algorithms, Architectures, and Implementations XV, 59100A (16 September 2005); https://doi.org/10.1117/12.618139

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