Journal of Infrared and Millimeter Waves, Volume. 42, Issue 6, 874(2023)
Analysis of the operating distance of infrared polarimetric imaging system considering the non-ideality of the detector
Figures & Tables(13)
Fig. 1. The schematic diagram of the split-focus plane detector system
Fig. 3. Relationship between the polarizer extinction ratio and the noise equivalent degree of linear polarization
Fig. 4. Relationship between N and the noise equivalent degree of linear polarization
Fig. 5. Relationship between the DoLP and the noise equivalent degree of linear polarization
Fig. 6. Relationship between δ and the noise equivalent degree of linear polarization
Table 1. Determination of Ne under different observation requirements
View tableView in ArticleTable 1. Determination of Ne under different observation requirements
Type Ne Detection 20 Recognition 100 Identification 200
Table 2. Polarization detector parameters
View tableView in ArticleTable 2. Polarization detector parameters
分辨率 320×256 焦距 24 mm 像元尺寸 30 μm×30 μm 光谱响应波段 10~11 μm 积分时间 典型值为 8 ms，可调 消光比 不小于10 典型输出帧率
偏置电压
40 Hz
7.2 V
F 数 ~2 1 比探测率
0.4
探测器井容量 106
Table 3. The experimental result
View tableView in ArticleTable 3. The experimental result
角度 偏振度 NeDoLP仿真值/（%） NeDoLP测量值/（%） 误差 10° 0.021 7 0.295 8 0.304 8 2.952% 15° 0.037 1 0.296 2 0.302 9 2.212% 20° 0.064 1 0.296 7 0.309 8 4.229% 25° 0.103 9 0.297 1 0.312 7 4.989% 30° 0.162 0 0.297 4 0.310 6 4.250% 35° 0.226 2 0.298 4 0.310 1 3.773% 40° 0.305 4 0.301 6 0.312 2 3.395%
Table 4. The maximum operating range of the infrared imaging system
View tableView in ArticleTable 4. The maximum operating range of the infrared imaging system
Probability 0.5 0.7 0.8 Detection/（km） 7.544 5.827 4.253 Recognition/（km） 2.305 1.746 1.255 Identification/（km） 1.243 0.985 0.668
Table 5. The maximum operating range of the infrared polarization imaging system
View tableView in ArticleTable 5. The maximum operating range of the infrared polarization imaging system
Probability 0.5 0.7 0.8 Detection /（km） 9.836 7.835 6.328 Recognition/（km） 2.864 2.532 1.937 Identification/（km） 1.037 0.998 0.874
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Chang TAN, Shi-Yong WANG, Si-Li GAO. Analysis of the operating distance of infrared polarimetric imaging system considering the non-ideality of the detector[J]. Journal of Infrared and Millimeter Waves, 2023, 42(6): 874
Paper Information
Category: Research Articles
Received: Mar. 1, 2023
Accepted: --
Published Online: Dec. 26, 2023
The Author Email: Shi-Yong WANG (s_y_w@sina.com)
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