Radiometric calibration method for large aperture infrared system with broad dynamic range

	Radiometric calibration method for large aperture infrared system with broad dynamic range
	Sun, Z. Y.; S. T. Chang and W. Zhu
	2015
发表期刊	Applied Optics
卷号	54 期号:15 页码:4659-4666
摘要	Infrared radiometric measurements can acquire important data for missile defense systems. When observation is carried out by ground-based infrared systems, a missile is characterized by long distance, small size, and large variation of radiance. Therefore, the infrared systems should be manufactured with a larger aperture to enhance detection ability and calibrated at a broader dynamic range to extend measurable radiance. Nevertheless, the frequently used calibration methods demand an extended-area blackbody with broad dynamic range or a huge collimator for filling the system's field stop, which would greatly increase manufacturing costs and difficulties. To overcome this restriction, a calibration method based on amendment of inner and outer calibration is proposed. First, the principles and procedures of this method are introduced. Then, a shifting strategy of infrared systems for measuring targets with large fluctuations of infrared radiance is put forward. Finally, several experiments are performed on a shortwave infrared system with Phi 400 mm aperture. The results indicate that the proposed method cannot only ensure accuracy of calibration but have the advantage of low cost, low power, and high motility. Hence, it is an effective radiometric calibration method in the outfield. (C) 2015 Optical Society of America
收录类别	SCI ; EI
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/55389
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Sun, Z. Y.,S. T. Chang and W. Zhu. Radiometric calibration method for large aperture infrared system with broad dynamic range[J]. Applied Optics,2015,54(15):4659-4666.
APA	Sun, Z. Y.,&S. T. Chang and W. Zhu.(2015).Radiometric calibration method for large aperture infrared system with broad dynamic range.Applied Optics,54(15),4659-4666.
MLA	Sun, Z. Y.,et al."Radiometric calibration method for large aperture infrared system with broad dynamic range".Applied Optics 54.15(2015):4659-4666.

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