LWIR scene simulator developed for end-to-end performance evaluation of focal planes

Computer Science – Performance

Scientific paper

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Focal Plane Devices, Infrared Imagery, Signal Processing, Target Simulators, Black Body Radiation, Calibrating, Performance Tests, Test Equipment

Scientific paper

The development of a long-wave infrared optical simulator facilitates evaluation of the end-to-end performance of long wavelength infrared (LWIR) focal plane arrays (FPAs) in a system-like environment. This simulator provides selectable structured scene inputs to a focal plane module or array. Background irradiances as low as 10 exp 10 photons/sq cm s are achievable when the simulator is cooled with liquid helium. The optical simulator can generate single or multiple targets of controllable intensities, and uniform or structured background irradiances. The infrared scenes can be viewed in a stationary mode or dynamically scanned across the focal plane.

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