The Polarized Scene Generator (PSG) is a methodology pioneered at Polaris Sensor Technologies, Inc. The PSG enables projection of imagery with user defined polarization content. The PSG is applicable to a variety of imaging/non imaging sensors in Hardware-in-the-Loop (HWIL) test environments where the user is interested in testing sensor/algorithm response to scenes with polarized content. The methodology is effectively independent of waveband, display device, and can be modified appropriately for different HWIL facilities including cryogenic-vacuum environments.

The PSG has been demonstrated at the US Army Aviation and Missile Commands Research Development & Engineering Center, Redstone Arsenal, AL. The PSG demonstrator employed commercial off-the-shelf infrared scene projectors, infrared optics, and an infrared imaging sensor. Inputs to the PSG were radiometrically calibrated polarized scenes recorded with the Polaris Divided Optical Aperture (DOA) imaging polarimeter. Two IR scene projectors are required for sequentially generating S1 and S2 Stokes images. Three IR scene projectors are required for simultaneous S1 and S2 Stokes image generation.

Specifications
     - MWIR DOA imaging polarimeter
     - Two MWIR deformable mirror device scene projectors
     - Wire grid IR polarizers on Si substrates
     - Si Beam Combiner
     - MWIR relay optics
     - Wire grid IR polarizer on BaF substrate
     - Insb MWIR imaging sensor
     - Outputs are calibrated linear Stokes polarization images