Title :
Near field imaging of subsurface targets using wide-band multi-static RELAX/CLEAN algorithms
Author :
Alam, Mubashir ; McClellan, James H.
Author_Institution :
Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA
Abstract :
The paper presents two new imaging algorithms for detecting the positions of subsurface targets, e.g., land mines, using seismic waves. They are based on the CLEAN algorithm and its high resolution version RELAX. The paper shows how the CLEAN and RELAX algorithms can be modified to work in a multi-static active array setup for detecting passive targets. Seismic surface waves reflected from various targets are collected at a receiving array and processed to locate the reflectors. The modified imaging algorithms are demonstrated to work for experimental seismic data that include mines and rocks (clutter).
Keywords :
acoustic imaging; acoustic signal processing; array signal processing; buried object detection; landmine detection; seismic waves; surface acoustic waves; CLEAN algorithm; RELAX algorithm; acoustic waves; imaging algorithms; land mines; multistatic active array setup; near field imaging; passive target detection; seismic surface waves; seismic waves; subsurface target position detection; subsurface targets; Extraterrestrial measurements; Frequency; High-resolution imaging; Landmine detection; Scattering; Seismic waves; Signal processing; Surface cleaning; Surface waves; Wideband;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2005. Proceedings. (ICASSP '05). IEEE International Conference on
Print_ISBN :
0-7803-8874-7
DOI :
10.1109/ICASSP.2005.1416204
