Influence of Earth Radiation on Photoelectric Detection System Based on Space

A illuminating model of earth radiation was built,and the luminous intensity of the space target surface from the earth radiation was calculated.The results show that the earth radiation is enough illumination for photoelectric detection system based on space.The stray-light from atmosphere-earth was researched,and a method how to evaluate the stray-light influence of earth radiation on photoelectric detection system based on space was investigated.