5 October 2017 Single vs. dual color fire detection systems: operational tradeoffs
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In attempt to supply a reasonable fire plume detection, multinational cooperation with significant capital is invested in the development of two major Infra-Red (IR) based fire detection alternatives, single-color IR (SCIR) and dual-color IR (DCIR). False alarm rate was expected to be high not only as a result of real heat sources but mainly due to the IR natural clutter especially solar reflections clutter. SCIR uses state-of-the-art technology and sophisticated algorithms to filter out threats from clutter. On the other hand, DCIR are aiming at using additional spectral band measurements (acting as a guard), to allow the implementation of a simpler and more robust approach for performing the same task.

In this paper we present the basics of SCIR & DCIR architecture and the main differences between them. In addition, we will present the results from a thorough study conducted for the purpose of learning about the added value of the additional data available from the second spectral band. Here we consider the two CO2 bands of 4-5 micron and of 2.5-3 micron band as well as off peak band (guard). The findings of this study refer also to Missile warning systems (MWS) efficacy, in terms of operational value. We also present a new approach for tunable filter to such sensor.
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Meir Danino, Meir Danino, Yossef Danan, Yossef Danan, Moshe Sinvani, Moshe Sinvani, } "Single vs. dual color fire detection systems: operational tradeoffs", Proc. SPIE 10434, Electro-Optical Remote Sensing XI, 1043408 (5 October 2017); doi: 10.1117/12.2272406; https://doi.org/10.1117/12.2272406

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