Research On Hyperspectral Dynamic Infrared Scene Simulation Technology
INTERNATIONAL CONFERENCE ON PHOTONICS AND OPTICAL ENGINEERING (ICPOE 2014)(2015)
摘要
The paper presents a hardware in loop dynamic IR scene simulation technology for IR hyperspectral imaging system. Along with fleetly development of new type EO detecting, remote sensing and hyperspectral imaging technique, not only static parameters' calibration of hyperspectral IR imaging system but also dynamic parameters' testing and evaluation are required, thus hyperspectral dynamic IR simulation and evaluation become more and more important. Hyperspectral dynamic IR scene projector utilizes hyperspectral space and time domain features controlling spectrum and time synchronously to realize hardware in loop simulation. Hyperspectral IR target and background simulating image can be gained by the accomplishment of 3D model and IR characteristic romancing, hyperspectral dynamic IR scene is produced by image converting device. The main parameters of a developed hyperspectral dynamic IR scene projector: wave band range is 3 similar to 5 mu m, 8 similar to 12 mu m; Field of View (FOV) is 8 degrees; spatial resolution is 1024x768; spectrum resolution is 1%similar to 2%. IR source and simulating scene features should be consistent with spectrum characters of target, and different spectrum channel's images can be gotten from calibration. A hyperspectral imaging system splits light with dispersing type grating, pushbrooms and collects the output signal of dynamic IR scene projector. With hyperspectral scene spectrum modeling, IR features romancing, atmosphere transmission feature modeling and IR scene projecting, target and scene in outfield can be simulated ideally, simulation and evaluation of IR hyperspectral imaging system's dynamic features are accomplished in laboratory.
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关键词
Hyperspectral imaging, IR scene projector, Spectrum modeling, Hardware in loop simulation
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