12 May 2015 Signal intensity transfer function determination on thermal systems with stray light or scattering present
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Abstract
Accurate Signal Intensity Transfer Functions (SITF) measurements are necessary to determine the calibration factor in the 3D noise calculation of an electro-optical imaging system. The typical means for measuring a sensor’s SITF is to place the sensor in a flooded field environment at a distance that is relatively close to the aperture of the emitter. Unfortunately, this arrangement has the potential to allow for additional contributions to the SITF in the form of scattering or stray light if the optics are not designed properly in the system under test. Engineers at the US Army Night Vision and Electronic Sensors Directorate are working to determine a means of evaluating the contribution due to scatting or stray light.
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Stephen D. Burks, David P. Haefner, Thomas J. Burks, "Signal intensity transfer function determination on thermal systems with stray light or scattering present", Proc. SPIE 9452, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXVI, 945206 (12 May 2015); doi: 10.1117/12.2178150; https://doi.org/10.1117/12.2178150
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