Gu Mu, Ren Qifeng, Liao Sheng, Zhou Jinmei, Zhao Rujin. Infrared multi-spectral design based on point target feature parameter extraction[J]. Infrared and Laser Engineering, 2020, 49(5): 20190462
- Infrared and Laser Engineering
- Vol. 49, Issue 5, 20190462 (2020)
Fig. 1. (a) Schematic diagram of long-range point target detection; (b) Working principle of infrared spectral system
Fig. 2. (a) Variation of number of wavebands with mean deviations of equivalent temperature and true value ; (b) Variation of number of wavebands with mean deviations of equivalent area and true value
Fig. 3. Long wave (8–12 μm). (a) Variation of equivalent temperature standard deviation with wave band number and SNR; (b) Variation of equivalent area standard deviation with wave band number and SNR
Fig. 4. Mid wave (3–5 μm) and long wave (8–12 μm). (a) Variation of equivalent temperature standard deviation with wave band number and SNR; (b) Variation of equivalent area standard deviation with wave band number and SNR
Fig. 5. Inconsistency of signal-to-noise ratio between mid wave and long wave. (a) Variation of equivalent temperature standard deviation with wave band number and SNR of mid wave; (b)Variation of equivalent area standard deviation with wave band number and SNR of long wave
Fig. 6. Inconsistency of wave band number between mid wave and long wave. (a) Variation of equivalent temperature standard deviation with wave band number; (b) Variation of equivalent area standard deviation with wave band number
Fig. 7. Variation of photon flux density of atmospheric background with field angle for (a) Mid wave; (b) Long wave
Fig. 8. For a target with temperature of 300 K and area of 20 m2. (a) Standard deviation of equivalent temperature varies with distance; (b) Standard deviation of equivalent area varies with distance
Fig. 9. For a target with distance of 2 000 km and area of 20 m2. (a) Standard deviation of equivalent temperature varies with target’s temperature; (b) Standard deviation of equivalent area varies with target’s temperature
Fig. 10. For a target with distance of 2 000 km and temperature of 300 K. (a) Standard deviation of equivalent temperature varies with target’s area; (b) Standard deviation of equivalent area varies with target’s area
|
Table 1. Parameters of infrared spectral system
Set citation alerts for the article
Please enter your email address
© Copyright 2018-2021 | Chinese Laser Press. All Rights Reserved 沪ICP备15018463号-20