红外偏振特性及其变化规律能够表征空间目标的表面信息与状态信息。结合当前偏振探测的最新进展，分析了基于红外偏振特性对空间目标进行探测的思路与可行性。由于空间目标偏振特性会随空间目标特定的材料以及运动轨道不同而存在差异，因此红外偏振探测技术可以为空间目标的探测和识别提供更多的依据。通过对空间目标常用的不同材料、同一材料不同表面状态以及在不同观测角下偏振特性的分析，得出光滑钢板红外平均偏振度是粗糙钢板的1.3倍左右。

Infrared polarization properties and their variation can characterize the surface and state information of the space target. Combining the latest progress of current polarization detection, the feasibility of space target detection based on infrared polarization properties is analyzed. Space target polarization properties vary with the materials as well as the orbits of the space targets, which provides a scientific basis of using infrared polarization detection technology to detect and identify space target. Through the analysis of polarization properties of different materials commonly used in space targets, and same material under different surface states and different viewing angles, the results demonstrate that the average DOP(degree of polarization) of a smooth steel plate is about 1.3 times rough steel.