Design of imaging system of cloud and aerosol polarization imager with high signal-to-noise ratio

Li Shuai; Xu Shuyan; Liu Dongbin; Zhang Hang

doi:10.3788/IRLA201847.1111006

To capture the space-borne remote sensing aerosol data with high signal-to-noise ratio (SNR), according to the chain of the imaging system, the main factors on the SNR of spectrometer were presented. Combined with the imaging system response model and the expression of SNR, a modular design method for high SNR of spectrometer imaging circuit system was proposed for visible detectors and infrared detectors. From the overall design to the module design of Cloud and Aerosol Polarization Imager (CAPI) imaging circuit development plan was described. The radiation calibration experimental results indicate that the minimum SNR of visible channel image under typical radiance conditions is 50.9 dB, the minimum SNR of infrared channel image under typical radiance conditions is 62.3 dB. The design method of visible detectors and infrared detectors provides references for other spectrometer imaging circuit system in remote sensing fields.

Design of imaging system of cloud and aerosol polarization imager with high signal-to-noise ratio

1. Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China;

2. University of Chinese Academy of Sciences,Beijing 100049,China

Received Date: 2018-06-10

Rev Recd Date: 2018-07-20

Publish Date: 2018-11-25

Key words:

Abstract: To capture the space-borne remote sensing aerosol data with high signal-to-noise ratio (SNR), according to the chain of the imaging system, the main factors on the SNR of spectrometer were presented. Combined with the imaging system response model and the expression of SNR, a modular design method for high SNR of spectrometer imaging circuit system was proposed for visible detectors and infrared detectors. From the overall design to the module design of Cloud and Aerosol Polarization Imager (CAPI) imaging circuit development plan was described. The radiation calibration experimental results indicate that the minimum SNR of visible channel image under typical radiance conditions is 50.9 dB, the minimum SNR of infrared channel image under typical radiance conditions is 62.3 dB. The design method of visible detectors and infrared detectors provides references for other spectrometer imaging circuit system in remote sensing fields.

HTML

Reference (9)

[1]	Luke Maidment, Zhang Zhaowei, Christopher R Howle, et al. Stand-off identification of aerosols using mid-infrared backscattering Fourier-transform spectroscopy[J]. Optics Letters, 2016, 41(10):2266-2269.
[2]	Zhu Wenyue, Liu Qiang, Wu Yi. Aerosol absorption measurement at SWIR with water vapor interference using a differential photoacoustic spectrometer[J]. Optics Express, 2015, 23(18):23108-23116.
[3]	Zhang Junqiang, Xue Chuang, Gao Zhiliang, et al. Optical remote sensor for cloud and aerosol from space:past, present and future[J]. Chinese Optics, 2015,8(5):680-698. (in Chinese)张军强, 薛闯, 高志良, 等. 云与气溶胶光学遥感仪器发展现状及趋势[J]. 中国光学, 2015, 8(5):680-698.
[4]	Yang Shaohua, Guo Mingan, Li Binkang, et al. Design of digital EMCCD camera with mega pixels[J]. Optics and Precision Engineering, 2011, 19(12):2970-2976. (in Chinese)杨少华, 郭明安, 李斌康, 等. 百万像素电子倍增CCD数字化相机的设计[J]. 光学精密工程, 2011, 19(12):2970-2976.
[5]	Xu Wenhai, Wu Houde. Design of ultra-high resolution CCD imaging systems[J]. Optics and Precision Engineering, 2012, 20(7):1603-1610. (in Chinese)许文海, 吴厚德. 超高分辨率CCD成像系统的设计[J]. 光学精密工程, 2012, 20(7):1603-1610.
[6]	Zheng Liangliang, Jin Guang, Qu Hongsong, et al. Space-borne CCD imaging circuit system with high signal-to-noise ratio[J]. Optics and Precision Engineering, 2016, 24(8):2028-2036. (in Chinese)郑亮亮, 金光, 曲宏松, 等. 高信噪比星载CCD成像电路系统[J]. 光学精密工程, 2016, 24(8):2028-2036.
[7]	Fan Jinxiang, Yang Jianyu. Development trends of infrared imaging detecting technology[J]. Infrared and Laser Engineering, 2012, 41(12):3146-3153. (in Chinese)范晋祥, 杨建宇. 红外成像探测技术发展趋势分析[J]. 红外与激光工程, 2012, 41(12):3146-3153.
[8]	Liu Tao, Zhang Ye, Li Liang, et al. FPGA design of GF-4 satellite large-array infrared camera video processing circuit[J]. Spacecraft Recovery Remote Sensing, 2017, 38(3):109-115. (in Chinese)刘涛, 张晔, 李亮, 等. 高分四号卫星大面阵红外相机视频处理电路的FPGA设计[J]. 航天返回与遥感, 2017, 38(3):109-115.
[9]	Zhang Pei, Zhu Hongbin, Lv Jian, et al. Design of the low noise uncooled infrared focal plane array driver circuit[J]. Infrared and Laser Engineering, 2010, 39(5):806-810. (in Chinese)张沛, 祝红彬, 吕坚, 等. 低噪声非制冷红外焦平面阵列驱动电路的设计[J]. 红外与激光工程, 2010, 39(5):806-810.

Design of imaging system of cloud and aerosol polarization imager with high signal-to-noise ratio

doi: 10.3788/IRLA201847.1111006

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

Article Metrics

Related

Proportional views