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31 March 2008 Design and performance of a polarized IR scene generator
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Polarization signature information is becoming more useful as an added discriminant in a variety of signature analysis applications. However, there are few infrared scene projection systems that provide the capability to inject target simulation images with polarization content into a seeker, or other imaging sensor. In this paper, we discuss a polarization scene generator (PSG) concept that is applicable to testing sensor systems operating in cryogenic-vacuum environments. This polarization scene generator concept demonstrator system was constructed from off-the-shelf technology using commercially available mid-wave infrared (MWIR) scene projectors based on micromirror device display technology, standard infrared polarizers, and standard IR cameras. The demonstrator system used two digital micromirror device (DMD)-based displays, each projecting orthogonal polarization states, which were then combined to generate images with pixels having independent S1 or S2 polarization content. This concept is robust because it is relatively unconstrained by the IR scene generators used or by the seekers tested. This paper discusses the test results of the concept demonstrator system with regard to sensitivity to misalignment, radiance mismatch, and display uniformity.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Peter S. Erbach, J. Larry Pezzaniti, David B. Chenault, Danny Saylor, and Heard S. Lowry "Design and performance of a polarized IR scene generator", Proc. SPIE 6972, Polarization: Measurement, Analysis, and Remote Sensing VIII, 69720Z (31 March 2008);

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