Wang Jianyu, Li Chunlai, Wang Yueming, Lv Gang, Yuan Liyin, Jin Jian, Chen Xiaowen, Xie Feng. Sensitivity model and system design for thermal infrared hyperspectral imager[J]. Infrared and Laser Engineering, 2017, 46(1): 102001-0102001(7). doi: 10.3788/IRLA201746.0102001
| Citation:
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Wang Jianyu, Li Chunlai, Wang Yueming, Lv Gang, Yuan Liyin, Jin Jian, Chen Xiaowen, Xie Feng. Sensitivity model and system design for thermal infrared hyperspectral imager[J]. Infrared and Laser Engineering, 2017, 46(1): 102001-0102001(7). doi: 10.3788/IRLA201746.0102001
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Sensitivity model and system design for thermal infrared hyperspectral imager
- 1.
Key Laboratory of Space Active Optoelectronic Technology,Chinese Academy of Sciences,Shanghai Institute of Technical Physics,Chinese Academy of Sciences,Shanghai 200083,China
- Received Date: 2016-08-10
- Rev Recd Date:
2016-09-20
- Publish Date:
2017-01-25
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Abstract
The thermal infrared spectrum is a very useful band for earth-observation hyperspectral remote sensing. Due to the limitation of technology, the hyperspectral imaging system of thermal infrared spectrum in domestic space photoelectric system is not very common, but it has developed quickly and made great progressunder the support of national related department in recent years. Based on the airborne thermal infrared hyperspectral im ager' developing during the Twelfth Five-Year Plan period, the signal flow model of the system was established in this paper. The background radiation of the system was modelled and simulated, the dark current of the infrared focal plane component was analyzed and measured, and on this basis the factors affecting the detection sensitivity of the system were analyzed, the design rules of the cryogenic optical 100 K for the cryogenic temperature was presented. After the completion of the airborne thermal infrared hyperspectral imager, the comparison between the actual detection sensitivity and the simulation results was carried out. The results show that the system has good compliance and has accumulated important data for the further development of thermal infrared hyperspectral imaging technology.
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References
|
[1]
|
Wang Jianyu, Xu Weiming, Yuan Liyin, et al. Background radiation suppression of a thermal infrared hyperspectral imaging system[J]. Journal of Infrared and Millimeter Waves, 2010, 29(6):419-423. (in Chinese)王建宇, 徐卫明, 袁立银, 等. 热红外高光谱成像系统的背景抑制和性能优化[J]. 红外与毫米波学报, 2010, 29(6):419-423. |
|
[2]
|
Shen Mangzuo, Ma Wenli, Liao Sheng, et al. Development of a cryogenic optical system[J]. Acta Optica Sinica, 2001, 21(2):202-205. (in Chinese)沈忙作, 马文礼, 廖胜,等. 低温光学系统的研制[J]. 光学学报, 2001, 21(2):202-205. |
|
[3]
|
Wang Jianyu, WangYueming, Li Chunlai. Noise model of hyperspectral imaging system and ifluence on radiation sensitivity[J]. Journal of Remote Sensing, 2010, 14(4):614-620. (in Chinese)王建宇, 王跃明, 李春来. 高光谱成像系统的噪声模型和对辐射灵敏度的影响[J]. 遥感学报, 2010, 14(4):614-620. |
|
[4]
|
Li Chunlai, Lin Chun. Space-borne LWIR FPA imaging system[J]. Infrared and Laser Engineering, 2012, 41(9):2253-2260. (in Chinese)李春来, 林春. 星载长波红外焦平面成像系统[J]. 红外与激光工程, 2012, 41(9):2253-2260. |
|
[5]
|
Xue Yongqi. The technical development of airborne scan imaging systems[J]. Journal of Infrared and Millimeter Waves, 1992,11(3):169-180. (in Chinese)薛永祺. 机载扫描成像系统的技术发展[J]. 红外与毫米学报, 1992, 11(3):169-180. |
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