Space target optical characteristic calculation model and method in the photoelectric detection target.
Space target optical characteristic calculation model and method in the photoelectric detection target.
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DOI：
10.1364/ao.55.003689
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发表时间：
2016-05
期刊：
影响因子：
1.9
通讯作者：
Han-shan Li
中科院分区：
文献类型：
--
作者：
Han-shan Li
为提高光电探测目标的性能和灵敏度，研究了空间目标光学特性的计算方法。根据光电探测目标的探测原理和探测屏厚度的几何关系，采用面元网格分析法和双向反射分布函数建立了空间目标光谱特性模型。提供光电探测目标探测区域的光学透镜入射光瞳中的入射辐射能量计算功能，以确定空间目标的总光谱辐射亮度强度计算功能。文中还报道了基于探测灵敏度定义的光电探测目标探测到的最小通量计算函数，以及目标以不同入射角进入探测区时的辐射能量变化曲线。最后，给出了光学探测系统在不同辐射波长和反射辐射角下的光谱照度，以及同一距离不同入射角下目标通过探测屏区域的光谱辐射强度变化曲线。
This paper researches the calculation method of space target optical characteristics to improve performance and sensitivity of the photoelectric detection target. In accordance with the detection principle of the photoelectric detection target and the detection screen thickness geometrical relationship, this paper sets up the space target spectral characteristic model using the surface element mesh analysis method and the bidirectional reflection distribution function. It provides the incident radiation energy calculation function in the optical lens entrance pupil of the photoelectric detection target detection area in order to determine the total spectral radiance intensity calculation function of the space target. The paper also reports on the minimum flux calculation function detected by the photoelectric detection target based on the definition of detection sensitivity and the change curve of the target's radiation energy when entering the detection area at different incident angles. Lastly, it demonstrates the spectral illuminations of an optical detection system under different radiation wavelengths and reflection radiation angles, as well as change curves of the target's spectral radiation intensity passing through the detection screen area and at different incident angles from the same distance.