光学学报, 2018, 38 (11): 1104002, 网络出版: 2019-05-09
基于电子倍增的高光谱成像链模型的系统信噪比分析 下载: 1005次
System Signal-to-Noise Ratio Analysis of Hyperspectral Imaging Chain Model Based on Electron Multiplication
图 & 表
图 2. 基于电子倍增的高光谱成像系统的信噪比模型。(a)电子倍增增益为1;(b)电子倍增增益大于1
Fig. 2. SNR model of hyperspectral imaging system based on electron multiplication. (a) Electron multiplication gain is 1;(b) electron multiplication gain is larger than 1
图 3. 焦面辐照度。(a) 5 nm谱段间隔; (b) 10 nm谱段间隔
Fig. 3. Focal surface irradiance. (a) 5 nm spectral interval; (b) 10 nm spectral interval
图 4. ξ=4.5的信噪比。(a) 背照谱段间隔5 nm;(b) 前照谱段间隔5 nm;(c) 背照谱段间隔10 nm;(d) 前照谱段间隔10 nm
Fig. 4. SNR when ξ=4.5. (a) 5 nm spectral interval for back illumination; (b) 5 nm spectral interval for front illumination;(c) 10 nm spectral interval for back illumination;(d) 10 nm spectral interval for front illumination
图 5. ξ=10的信噪比。(a) 背照谱段间隔5 nm;(b) 前照谱段间隔5 nm;(c) 背照谱段间隔10 nm;(d) 前照谱段间隔10 nm
Fig. 5. SNR when ξ=10. (a) 5 nm spectral interval for back illumination; (b) 5 nm spectral interval for front illumination;(c) 10 nm spectral interval for back illumination;(d) 10 nm spectral interval for front illumination
表 1不同像元分辨率下的最大积分时间
Table1. Maximum integration time at different pixel resolutions
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余达, 刘金国, 何昕, 何家维, 陈佳豫, 张晓阳, 彭畅. 基于电子倍增的高光谱成像链模型的系统信噪比分析[J]. 光学学报, 2018, 38(11): 1104002. Da Yu, Jinguo Liu, Xin He, Jiawei He, Jiayu Chen, Xiaoyang Zhang, Chang Peng. System Signal-to-Noise Ratio Analysis of Hyperspectral Imaging Chain Model Based on Electron Multiplication[J]. Acta Optica Sinica, 2018, 38(11): 1104002.