What are the main methods to quantitatively evaluate the infrared stealth effect of optical imaging?

Observation, measurement and simulation.

1, the first observation method. This method can judge whether the target can be detected by optical imaging by naked eye observation, and can also compare the effects of stealth shells with different materials and structures.

2. Second, the measurement method. This method uses infrared detector, thermal imager and other equipment to measure and detect the target. The differences of infrared radiation of different materials, different treatment methods and different combined structures can be compared.

3. The final simulation method. This method uses computer to simulate the working principle of optical imaging equipment and the physical characteristics of the target, and simulates the detection effect of the target under different conditions through software. This method has low cost and good effect, and can consider the infrared stealth problem from many angles, providing a quantitative evaluation method.