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Proceedings Paper

An imaging system detectivity metric using energy and power spectral densities
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Paper Abstract

The purpose of this paper is to construct a robust modeling framework for imaging systems in order to predict the performance of detecting small targets such as Unmanned Aerial Vehicles (UAVs). The underlying principle is to track the flow of scene information and statistics, such as the energy spectra of the target and power spectra of the background, through any number of imaging components. This information is then used to calculate a detectivity metric. Each imaging component is treated as a single linear shift invariant (LSI) component with specified input and output parameters. A component based approach enables the inclusion of existing component-level models and makes it directly compatible with image modeling software such as the Night Vision Integrated Performance Model (NV-IPM). The modeling framework also includes a parallel implementation of Monte Carlo simulations designed to verify the analytic approach. However, the Monte Carlo simulations may also be used independently to accurately model nonlinear processes where the analytic approach fails, allowing for even greater extensibility. A simple trade study is conducted comparing the modeling framework to the simulation.

Paper Details

Date Published: 3 May 2016
PDF: 16 pages
Proc. SPIE 9820, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXVII, 98200Q (3 May 2016); doi: 10.1117/12.2223849
Show Author Affiliations
Bradley L. Preece, U.S. Army Night Vision & Electronic Sensors Directorate (United States)
David Haefner, U.S. Army Night Vision & Electronic Sensors Directorate (United States)
Georges Nehmetallah, The Catholic Univ. of America (United States)


Published in SPIE Proceedings Vol. 9820:
Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXVII
Gerald C. Holst; Keith A. Krapels, Editor(s)

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