Abstract
In the adaptation of Terahertz (THz) synthetic aperture imaging to stand-off screening of concealed weapons and explosives, the incoming THz wavefronts exhibit significant curvature that must be considered in the image reconstruction. Consequently, the imaging array must be focused at a specific distance to correct for the wavefront curvature. In addition to the focusing correction, detection of explosives requires spectral analysis of the reconstructed THz image. Kohonen self-organizing maps are shown to be promising tools for differentiating the spectral signature of C4 explosive from the reflection spectra of metal and semi-transparent barrier materials. To cite this article: A. Sinyukov et al., C. R. Physique 9 (2008).
Original language | English (US) |
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Pages (from-to) | 248-261 |
Number of pages | 14 |
Journal | Comptes Rendus Physique |
Volume | 9 |
Issue number | 2 |
DOIs | |
State | Published - Mar 2008 |
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy
Keywords
- Kohonen maps
- Synthetic aperture
- Terahertz