Fig. 1. Overall plan of photoelectric radar test system

Fig. 2. Schematic of target radiation simulation system. (a) Infrared radiation target; (b) infrared reflection target

Fig. 3. Control structure of stepper attenuation disc servo-system

Fig. 4. Schematic of infrared parallel light pipe

Fig. 5. Attenuation disc unit

Fig. 6. Measurement test of infrared attenuation disc

Fig. 7. Distribution map of infrared radiation intensity in horizontal direction of target

Fig. 8. Relationship between atmospheric transmittance and detection distance at Jiuquan in January

Fig. 9. Measured connection diagram