研究空间目标的红外辐射谱,对于识别空间目标、监视空间碎片、保障卫星运行等空间安全问题有重要意义。针对典型空间目标红外辐射特性,分析了最大可探测距离、系统温度分辨能力以及它们之间的关系,设计出一套中、长波相结合,实时监视并跟踪空间点源目标的红外辐射谱测量系统。在实验室条件下进行了模拟测量,结果表明系统效果良好。 Studying the infrared radiation spectrum of the space target is of great significance for identifying the space target, monitoring the space debris and ensuring the space security of the satellite operation. Aiming at the infrared radiation characteristics of a typical space target, the maximum detectable distance, the temperature resolution of the system and the relationship between them are analyzed, and a set of infrared radiation spectrum measurement system combining long wavelength and real-time monitoring and tracking of spatial point sources is designed . The simulation results under laboratory conditions show that the system works well.