Using a CO2 laser for PIR-detector spoofing
conference paper
This paper presents experimental work on the use of a CO2 laser for triggering of PIR sensors. Pyro-electric InfraRed sensors are often used as motion detectors for detection of moving persons or objects that are warmer than their environment. Apart from uses in the civilian domain, also applications in improvised weapons have been encountered. In such applications the PIR sensor triggers a weapon, when moving persons or vehicles are detected. A CO2 laser can be used to project a moving heat spot in front of the PIR, generating the same triggering effect as a real moving object. The goal of the research was to provide a basis for assessing the feasibility of the use of a CO2 laser as a countermeasure against PIR sensors. After a general introduction of the PIR sensing principle a theoretical and experimental analysis of the required power levels will be presented. Based on this quantitative analysis, a set up for indoor experiments to trigger the PIR devices remotely with a CO2 laser was prepared. Finally some selected results of the experiments will be presented. Implications for the use as a countermeasure will be discussed. © 2016 SPIE.
The Society of Photo-Optical Instrumentation Engineers (SPIE)
The Society of Photo-Optical Instrumentation Engineers (SPIE)
Topics
TNO Identifier
745570
ISSN
0277786X
ISBN
9781510603820
Publisher
SPIE
Article nr.
99890K
Source title
Technologies for Optical Countermeasures XIII. 27 September 2016 through 28 September 2016
Editor(s)
Grasso, R.J.
Richardson, M.A.
Titterton, D.H.
Richardson, M.A.
Titterton, D.H.
Files
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