Title

Detecting Electronic Initiators using Electromagnetic Emissions

Abstract

The accurate and timely discovery of radio receivers can assist in the detection of radio-controlled explosives. By detecting radio receivers, it is possible to indirectly infer the presence of an explosive device. Radio receivers unintentionally emit lowpower radio signals during normal operation. By using a weak stimulation signal, it is possible to inject a known signal into these unintended emissions. This process is known as stimulated emissions. Unlike chemical traces, these stimulated emissions can propagate through walls and air-tight containers. The following case study discusses methods for detecting and locating two different types of radio receivers. Functional stimulated emissions detectors are constructed, and their performance is analyzed. Stimulated emissions are capable of detecting super-regenerative receivers at distances of at least one hundred meters and accurately locating superheterodyne receivers at distances of at least fifty meters. These results demonstrate a novel technique for detecting potential explosive threats at stand-off detection distances.

Department(s)

Electrical and Computer Engineering

Keywords and Phrases

Explosives Detection; Radio Receivers; Stimulated Emission

International Standard Book Number (ISBN)

978-1-4666-5946-9

Document Type

Book - Chapter

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2014 IGI Global, All rights reserved.

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