基于红外辐射特征的空间目标属性预测  

Properties prediction of space objects based on infrared radiative characteristics

作　　者：杨帆[1,2] 宣益民[1] 韩玉阁[1] 

机构地区：[1]南京理工大学能源与动力工程学院,南京210094 [2]北京卫星环境工程研究所,航天机电产品环境可靠性试验技术北京市重点实验室,北京100094

出　　处：《中国科学：技术科学》2016年第8期836-843,共8页Scientia Sinica(Technologica)

摘　　要：利用空间目标红外辐射测量数据,提出了系统的计算分析方法,对空间目标的温度、发射率等属性进行预测,进而判断空间目标的类型和运行状态.通过建立空间目标红外辐射光谱计算模型,模拟了探测器接收到的红外辐射光谱信号,采用独立成分分析方法提取了空间目标不同材料的光谱发射率特征,判断了空间目标的部件个数和材料类型,采用最小二乘拟合方法反演了空间目标各部件的投影面积与表面温度.模拟结果表明:该方法对空间目标参数的反演误差较小,能够实现对空间目标属性的预测.研究成果对于空间目标类型和状态的判断,具有十分重要的意义.The systematic analysis method was proposed to predict space objects＇ properties such like temperature or emissivity, taking advantage of infrared radiative measurement data. Further the type and operating status of space object can be determined. Through the simulation model of space object infrared spectral radiation, the infrared spectral signals received by detector were calculated. Utilizing independent component analysis method, the spectral emissivities of different materials were retrieved, and the number of components and type of materials were both determined. Then the projected areas and surface temperatures of various components were retrieved using the fitting method of least-squares. The simulation results demonstrated that the deviations of parameter retrieving are very small through this method, and the prediction is implemented successfully for the properties of space objects. The research has very important significance in determination space object type and status of judges.

关 键 词：空间目标 红外探测 光谱特征 反演 

分 类 号：TN215[电子电信—物理电子学]