Testing and results of an infrared polarized scene generator concept demonstrator

Peter S. Erbach; J. L. Pezzaniti; David B. Chenault; Danny Saylor; Heard S. Lowry

doi:10.1117/12.778049

16 April 2008 Testing and results of an infrared polarized scene generator concept demonstrator

Peter S. Erbach, J. L. Pezzaniti, David B. Chenault, Danny Saylor, Heard S. Lowry

Proceedings Volume 6942, Technologies for Synthetic Environments: Hardware-in-the-Loop Testing XIII; 69420D (2008) https://doi.org/10.1117/12.778049
Event: SPIE Defense and Security Symposium, 2008, Orlando, Florida, United States

Abstract

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.

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Peter S. Erbach, J. L. Pezzaniti, David B. Chenault, Danny Saylor, and Heard S. Lowry "Testing and results of an infrared polarized scene generator concept demonstrator", Proc. SPIE 6942, Technologies for Synthetic Environments: Hardware-in-the-Loop Testing XIII, 69420D (16 April 2008); https://doi.org/10.1117/12.778049

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KEYWORDS

Polarization

Polysomnography

Polarimetry

Cameras

Polarizers

Point spread functions

Relays

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