点目标的红外辐射特性测量方法

首先给出了红外辐射特性测量的基本原理, 对于点目标, 由于光学系统的衍射作用, 经过光学系统成像为一个弥散斑, 由于弥散的原因, 点目标的辐射特性测量精度一般都非常低, 针对这种情况, 提出了一种基于辐射能量守恒的点目标辐射特性测量优化算法, 给出了算法的具体原理和实现过程；最后, 为了验证算法的有效性, 在实验室里利用平行光管和点目标模拟装置进行了点目标辐射特性测量实验, 并对试验结果进行了系统分析, 结果表明, 经过优化算法后, 点目标的辐射测量精度优于10%, 表明点目标辐射特性测量优化算法在实际应用中有很广泛的前景.

Abstract

Firstly, the basic principles infrared radiation characteristic measure was presented. Due to the diffraction effect of the optical system, point target’s image is a dispersed spot. Point target radiation characteristic measurement accuracy is generally very low. View of this situation, one point target radiation characteristic measurement optimization algorithm based on radiation energy conservation was proposed, Specific principles and implementation process was given. Finally, point target radiation characteristic measurement experiment was done, and the results were analyzed. The results show that the point target radiation measurement optimization algorithm’s accuracy is better than 10%, indicating that the point target radiation characteristic measurement optimization algorithm has large application prospects in practice.

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曹立华, 万春明, 张云峰, 李宁. 点目标的红外辐射特性测量方法[J]. 红外与毫米波学报, 2015, 34(4): 460. CAO Li-Hua, WAN Chun-Ming, ZHANG Yun-Feng, LI Ning. Infrared radiation characteristic measure method of point target[J]. Journal of Infrared and Millimeter Waves, 2015, 34(4): 460.

点目标的红外辐射特性测量方法

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