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Proceedings Paper

Application of advanced IR-FPA in high-sensitivity pushbroom SWIR hyperspectral imager
Author(s): Yueming Wang; Xiaoqiong Zhuang; Shengwei Wang; Jianyu Wang
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Paper 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.

Paper Details

Date Published: 31 May 2012
PDF: 7 pages
Proc. SPIE 8353, Infrared Technology and Applications XXXVIII, 83532V (31 May 2012); doi: 10.1117/12.916023
Show Author Affiliations
Yueming Wang, Shanghai Institute of Technical Physics (China)
Xiaoqiong Zhuang, Shanghai Institute of Technical Physics (China)
Shengwei Wang, Shanghai Institute of Technical Physics (China)
Jianyu Wang, Shanghai Institute of Technical Physics (China)

Published in SPIE Proceedings Vol. 8353:
Infrared Technology and Applications XXXVIII
Bjørn F. Andresen; Gabor F. Fulop; Paul R. Norton, Editor(s)

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