Maximal Range of Vision Thermovision’s Objective Design
DOI:
https://doi.org/10.20535/1810-0546.2015.6.55189Keywords:
Synthesis of a thermal imaging system, Surveillance range, Infrared lensAbstract
Background. The work’s background lies in the thermal imaging surveillance systems (TISS) and their input blocks analysis and synthesis.
Objective. Objective of the study is to develop a calculation method for TISS input block design, based on the assumption of specified maximum range of observation.
Methods. The application of the linear systems theory to the TISS basic mathematical model, which considers basic components of signal transformation process from object to observer.
Results. A simplified method for the TISS lens synthesis was proposed on the maximum range of observation at given probability of performing visual task criterion. Some approaches from STANAG 4347, which defines TISS nominal ranger performance, were used in the method. The accuracy of calculation algorithms has been proved on the example of calculation of French thermal imaging camera Catherine-FC input unit.
Conclusions. The developed method is compatible with STANAG 4347 and also allows thermal imaging system analysis and matching characteristics of infrared lens and detector.
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