Simulation of Imaging Fault of Aerial Infrared Camera
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摘要: 本文基于光学相机成像效应仿真模型，提出了一种航空红外相机典型故障效应仿真方法。在对航空红外相机的光学系统、探测器、电子电路信号对成像效应进行深入仿真的基础上，对不同类型成像故障效应进行了模拟，采用典型故障的成像表现评价指标进行全面验证评价。研究结果表明：基于红外相机成像效应的仿真模型可有效模拟多种故障成像效应，能对装备的使用维护、试验鉴定中的故障的初步分析发挥重要的指导作用。Abstract: Based on the imaging-effect simulation model of an optical camera, a pre-simulation method for typical fault effects of aerial infrared imaging camera is proposed. Based on an in-depth simulation of the imaging effects of the optical system, detector, and electronic circuit signals of an airborne infrared camera, imaging fault effects under different conditions were simulated, and an imaging performance evaluation index of typical faults was used for comprehensive verification and evaluation. The results show that the simulation model based on sensor imaging effect can effectively simulate multiple fault effects, which is consistent with the subjective evaluation results and plays an important role in guiding the use and maintenance of equipment during the finalization of the equipment test. Fault simulation analysis can effectively evaluate and predict typical fault effects in aviation sensors.
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Key words:
- infrared camera /
- fault simulation /
- simulation analysis
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图 7 仿真系统开启非均匀性以后的红外成像效果
Figure 7. The infrared imaging effect after turning on non-uniformity
图 8 探测器“噪声等效温差”（NEDT）故障效应仿真
Figure 8. Simulation of the fault effect of "noise equivalent temperature difference" in detector
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