Comparison of methods for 3D target localization from seismic and acoustic signatures

Gregory J. Elbring; H. Douglas Garbin; Mark D. Ladd

doi:10.1117/12.392578

21 July 2000 Comparison of methods for 3D target localization from seismic and acoustic signatures

Gregory J. Elbring, H. Douglas Garbin, Mark D. Ladd

Proceedings Volume 4040, Unattended Ground Sensor Technologies and Applications II; (2000) https://doi.org/10.1117/12.392578
Event: AeroSense 2000, 2000, Orlando, FL, United States

Abstract

An important application of seismic and acoustic unattended ground sensors (UGS) is the estimation of the 3D position of an emitting target. Seismic and acoustic data derived from UGS systems provide the raw information to determine these locations, but can be processed and analyzed in a number of ways using varying amounts of auxiliary information. Processing methods to improve arrival time picking for continuous wave sources and methods for determining and defining the seismic velocity model are the primary variables affecting the localization accuracy. Results using field data collected from an underground facility have shown that using an iterative time picking technique significantly improves the accuracy of the resulting derived target location. Other processing techniques show little advantage over simple crosscorrelation alone in terms of accuracy, but may improve the ease with which time picks can be made. An average velocity model found through passive listening or a velocity model determined from a calibration source near the target source both result in similar location accuracies. Surprisingly, the use of average station corrections severely increases the location error.

Citation Download Citation

Gregory J. Elbring, H. Douglas Garbin, and Mark D. Ladd "Comparison of methods for 3D target localization from seismic and acoustic signatures", Proc. SPIE 4040, Unattended Ground Sensor Technologies and Applications II, (21 July 2000); https://doi.org/10.1117/12.392578

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