Concept of electro-optical sensor module for sniper detection system

Piotr Trzaskawka; Rafal Dulski; Mariusz Kastek

doi:10.1117/12.864973

26 October 2010 Concept of electro-optical sensor module for sniper detection system

Piotr Trzaskawka, Rafal Dulski, Mariusz Kastek

Proceedings Volume 7834, Electro-Optical and Infrared Systems: Technology and Applications VII; 783414 (2010) https://doi.org/10.1117/12.864973
Event: SPIE Security + Defence, 2010, Toulouse, France

Abstract

The paper presents an initial concept of the electro-optical sensor unit for sniper detection purposes. This unit, comprising of thermal and daylight cameras, can operate as a standalone device but its primary application is a multi-sensor sniper and shot detection system. Being a part of a larger system it should contribute to greater overall system efficiency and lower false alarm rate thanks to data and sensor fusion techniques. Additionally, it is expected to provide some pre-shot detection capabilities. Generally acoustic (or radar) systems used for shot detection offer only "after-the-shot" information and they cannot prevent enemy attack, which in case of a skilled sniper opponent usually means trouble. The passive imaging sensors presented in this paper, together with active systems detecting pointed optics, are capable of detecting specific shooter signatures or at least the presence of suspected objects in the vicinity. The proposed sensor unit use thermal camera as a primary sniper and shot detection tool. The basic camera parameters such as focal plane array size and type, focal length and aperture were chosen on the basis of assumed tactical characteristics of the system (mainly detection range) and current technology level. In order to provide costeffective solution the commercially available daylight camera modules and infrared focal plane arrays were tested, including fast cooled infrared array modules capable of 1000 fps image acquisition rate. The daylight camera operates as a support, providing corresponding visual image, easier to comprehend for a human operator. The initial assumptions concerning sensor operation were verified during laboratory and field test and some example shot recording sequences are presented.

Citation Download Citation

Piotr Trzaskawka, Rafal Dulski, and Mariusz Kastek "Concept of electro-optical sensor module for sniper detection system", Proc. SPIE 7834, Electro-Optical and Infrared Systems: Technology and Applications VII, 783414 (26 October 2010); https://doi.org/10.1117/12.864973

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