1 September 1991 Update on the C2NVEO FLIR90 and ACQUIRE sensor performance models
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Abstract
The C2NVEO FLIR90 thermal imaging systems model released in June 1990 has become the community standard model for evaluating tactical FLIR systems. This model, which successfully predicts MRTD performance for first- and second-generation thermal imagers, differs from the 1975 NVEOL thermal model in three critical areas: sampling, noise, and two-dimensional MRTD. This paper explains how each of these effects is modeled in FLIR90. First, the paper discusses how the model incorporates sampling effects by imposing Nyquist frequency limits and using pre- and postsampling MTFs. Second, the treatment of directional noise and modifications to the NETD prediction is discussed. Third, the paper discusses the two-dimensional MRTD methodology and the adjustments it imposes on the Johnson range performance prediction methodology modeled in ACQUIRE. Additionally, changes and additions in forthcoming upgrades to both FLIR90 and the ACQUIRE range performance model are described.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Luke B. Scott and David M. Tomkinson "Update on the C2NVEO FLIR90 and ACQUIRE sensor performance models", Proc. SPIE 1488, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing II, (1 September 1991); doi: 10.1117/12.45793; https://doi.org/10.1117/12.45793
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