Optical Signature Modeling of Transmissive Materials

Missile Defense Agency (MDA) relies on industry standard software such as Optical Signatures Code (OSC) to compute the visible and infrared signatures of threats, targets, and related objects. These models are critical for systems engineering studies, tracking and discrimination algorithm development, and proper stimulation of hardware-in-the-loop (HWIL) and software-in-the-loop (SWIL) testing for kill vehicle development and performance. Currently, tools such as OSC lack the ability to model optically transmissive materials and account for thermo-optical interactions of multilayered materials and multiple spatially separated object components. IERUS Technologies proposes to develop a high accuracy, computationally efficient optical/IR modeling capability for objects made up of arbitrary combinations of multilayered transmissive and reflective materials. IERUS will accomplish this by combining several existing in-house tools with our deep experience modeling and characterizing IR signatures and material properties. IERUS will draw upon GPU-accelerated ray tracing, rigorous thermo-optical finite element modeling, and experimental validation to produce a robust, accurate, and efficient IR modeling capability. Approved for Public Release | 16-MDA-8917 (15 November 16)