Baseband Weiner filter processing for mine detection from scanned laser-induced acoustic data

Pengyu Shi; Eric L. Miller

doi:10.1117/12.357022

2 August 1999 Baseband Weiner filter processing for mine detection from scanned laser-induced acoustic data

Pengyu Shi, Eric L. Miller

Author Affiliations +

Proceedings Volume 3710, Detection and Remediation Technologies for Mines and Minelike Targets IV; (1999) https://doi.org/10.1117/12.357022
Event: AeroSense '99, 1999, Orlando, FL, United States

Abstract

We consider the problems of detecting, localizing, and characterizing the shapes of buried mines from acoustic transducer data. A multipath model is used to describe the contributions in the data from fields scattered both by the ground as well as the object. By identifying the parameters in the model, we can successfully solve the target identification problem. Unfortunately, the narrow band and bandpass characteristics of the transducer in our system prevent a straightforward application of a Wiener filter as a means of extracting these parameters. Because of the bandpass nature of the transducer it is necessary to develop a base-banding procedure as a preprocessing stage for the Wiener filter. Due to the very narrow bandwidth, a detect and subtract method is constructed to extract the weak signal arising from the buried object which otherwise is drowned out in the sidelobes generated by the processing of the ground bounce. We demonstrate the utility of our approach on real experimental data collected at Northeastern University.

Citation Download Citation

Pengyu Shi and Eric L. Miller "Baseband Weiner filter processing for mine detection from scanned laser-induced acoustic data", Proc. SPIE 3710, Detection and Remediation Technologies for Mines and Minelike Targets IV, (2 August 1999); https://doi.org/10.1117/12.357022

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