Title :
Laser Doppler vibrometer-based acoustic landmine detection using the fast M-sequence transform
Author :
Xiang, Ning ; Sabatier, James M.
Author_Institution :
Nat. Center for Phys. Acoust., Univ. of Mississippi, University, MS, USA
Abstract :
Acoustic landmine detection using a laser Doppler vibrometer (LDV) has demonstrated success in recent field tests. However, low detector signals and speckle noise are still challenging problems in the LDV-based acoustic-to-seismic detection of buried landmines. This letter describes the use of binary maximum-length sequences as the acoustic excitation for achieving high SNRs of scanning results. Some relevant issues associated with the detection system design and experimental field results are discussed.
Keywords :
Doppler measurement; acoustic applications; landmine detection; military equipment; remote sensing by laser beam; LDV-based acoustic-seismic detection; SNR; acoustic excitation; acoustic landmine detection; buried landmines; detection system design; detector signals; fast M-sequence transform; laser Doppler vibrometer; speckle noise; Acoustic noise; Acoustic signal detection; Acoustic testing; Detectors; Landmine detection; Laser excitation; Laser noise; Signal detection; Speckle; Vibrometers; FMT; Fast M-sequence transform; landmine detection; maximal-length sequences;
Journal_Title :
Geoscience and Remote Sensing Letters, IEEE
DOI :
10.1109/LGRS.2004.836257
