31 May 2012 Application of advanced IR-FPA in high-sensitivity pushbroom SWIR hyperspectral imager
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Abstract
High sensitivity SWIR(ShortWave Infra-Red) hyperspectral imager is benefit of national resources sensing. Background radiation results in noise and fluctuation of system's dark level, which does much harm to instrument's radiometric performance. Basing on the analysis of background radiation and object reflectance signal, a SWIR hyperspectral system solution is given which utilize advanced infrared focal plane array technology. By system integration and testing, it's showed that ROIC's charge to voltage gain plays an important role in enhancing Signal to Noise Ratio(SNR). At lower light condition, high gain of ROIC and long integration time will lead to smaller dynamic range because of background radiation. A real-time background radiation monitoring method was validated which did a favor for eliminating background radiation in the image data.
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Yueming Wang, Yueming Wang, Xiaoqiong Zhuang, Xiaoqiong Zhuang, Shengwei Wang, Shengwei Wang, Jianyu Wang, Jianyu Wang, } "Application of advanced IR-FPA in high-sensitivity pushbroom SWIR hyperspectral imager", Proc. SPIE 8353, Infrared Technology and Applications XXXVIII, 83532V (31 May 2012); doi: 10.1117/12.916023; https://doi.org/10.1117/12.916023
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