Imaging Fabry-Perot Infrared Spectroradiometer

Physical Sciences Inc. (PSI) proposes to demonstrate the application and enhance the spectral range of a novel, infrared, spectral imager based on its; demonstrated infrared, imaging, Fabry-Perot interferometer concept. The system permits real-time spectral and spatial analysis of tactical battlefield scenes and aircraft signatures. The common pixel registry afforded by the design permits unique spectral information to be extracted from cluttered background and target analysis with sub-pixel spatial resolution. The application effort will address the use of the proven characteristics of the system in the 3 to 5 and 8 to 12 Hm spectral ranges to the signatures extant in tactical battlefield and aircraft scenes, including cruise missile detection. A laboratory effort will address the issues involved in adapting the instrument concept for use in the l to 3 Hm range and to shorter wavelengths. Instrumental configurations are presented that cover both the atmospheric windows at 3 to 5 and 8 to 12 pm. Illustrative estimates of the achievable noise equivalent temperature change (NEAT) of the instrument are presented.