空间目标的光散射、光辐射特性除了与其背景环境、几何结构和表面材料等密切相关外，姿态变化对其光学特性也有一定的影响，这种影响在天基观测中尤为明显。就姿态变化对空间目标可见光特性的影响进行了理论分析与建模研究，建立了姿态相关的空间目标可见光特性的理论模型。结合具体的参数，对空间目标环境一号卫星和资源二号卫星在探测视点处的辐照度随姿态的变化进行了数值计算。初步的研究结果表明，姿态变化对空间目标可见光特性的影响不可忽略。建模结果可为空间目标的探测、识别提供理论依据。

The light scattering and radiation characteristics of space target is related to its background environment, geometric structure and surface material, and also influenced by its attitude variation. The influence is especially prominent in spacebased surveillance. The influence of attitude variation on visibleradiation characteristics of space target is modeled on the basis of orbit theory, and the irradiance variation with attitude of HJ1 and ZY2 satellites is calculated by the given parameters. The calculation results indicate that the influence of attitude variation is not neglectable. The research could provide theoretical basis for space target detection and recognition.