A microwave-induced thermoacoustic detection system for embedded targets in lossy media is presented. The system achieves reliable detection of 5 cm × 5 cm × 2 cm targets embedded in a large Agarose sample at a 20 cm acoustic standoff. Repeated measurements across different target and sample configurations confirm the system’s ability to distinguish between a target signal and a baseline control signal generated by the package without embedded targets. Post-processing techniques including filtering and baseline signal characterization further improve detection performance.
Kevin C. Boyle, Hao Nan, Butrus T. Khuri-Yakub, and Amin Arbabian, "Noncontact thermoacoustic detection of targets embedded in dispersive media," Proc. SPIE 9988, Electro-Optical Remote Sensing X, 99880H (Presented at SPIE Security + Defence: September 27, 2016; Published: 21 October 2016); https://doi.org/10.1117/12.2241941.
Conference Presentations are recordings of oral presentations given at SPIE conferences and published as part of the proceedings. They include the speaker's narration with video of the slides and animations. Most include full-text papers. Interactive, searchable transcripts and closed captioning are now available for 2018 presentations, with transcripts for prior recordings added daily.
Search our growing collection of more than 16,000 conference presentations, including many plenaries and keynotes.