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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.
Based on the measurement data of infrared target of space target, a systematic calculation and analysis method is proposed to predict the properties of space target such as temperature and emissivity, and then to determine the type and operating status of space target.Through the establishment of space target infrared radiation spectral calculation model, The infrared radiation spectrum signal received by the detector was extracted. The spectral emissivity characteristics of different materials in the space target were extracted by using independent component analysis method. The number of parts and material types of the space target were determined. The least squares fitting method was used to inverse The projection area and the surface temperature of each part of the space object.The simulation results show that this method has less error in the inversion of the space object parameter and can predict the object property in space.The research results have very good performance in judging the space object type and state, Significance.