| 复杂背景红外成像系统作用距离估算方法 |
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| 引用本文： | 刁伟鹤,毛峡,梁晓庚.复杂背景红外成像系统作用距离估算方法[J].北京航空航天大学学报,2009,35(8):1022-1026. |
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| 作者姓名： | 刁伟鹤 毛峡 梁晓庚 |
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| 作者单位： | 北京航空航天大学,电子信息工程学院,北京,100191;中国空空导弹研究院,洛阳,471009 |
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| 基金项目： | 航空科学基金，北航博士研究生创新基金 |
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| 摘 要： | 传统红外成像系统作用距离模型只有在背景单一不变的条件下有效,引入概率分布的思想对传统作用距离方程进行了改进,将方程中的作用距离和背景红外辐射亮度由变量更换为向量,向量维数由背景红外图像的灰度值分布确定.改进后的作用距离模型将应用条件拓展到任意背景,打破了传统模型对背景条件的局限.针对作用距离计算过程中复杂背景红外辐射亮度难以获取的问题,提出建立红外成像系统的亮度-灰度函数,通过背景的红外图像灰度信息计算其红外辐射亮度的方法.计算实例表明,该模型能够解决复杂背景下红外成像系统作用距离的估算问题.
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| 关 键 词： | 作用距离 复杂背景 红外成像系统 红外辐射特性 |
| 收稿时间： | 2008-07-21 |
Method for estimating operating distance of IR imaging system under complex backgrounds |
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| Diao Weihe,Mao Xia,Liang Xiaogeng.Method for estimating operating distance of IR imaging system under complex backgrounds[J].Journal of Beijing University of Aeronautics and Astronautics,2009,35(8):1022-1026. |
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| Authors: | Diao Weihe Mao Xia Liang Xiaogeng |
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| Institution: | 1. School of Electronics and Information Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China;
2. China Airborne Missile Academy, Luoyang 471009, China |
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| Abstract: | For the application limitation of traditional operating distance model under complex backgrounds,the traditional equation was improved by adding the idea of probability distribution.In the new equation,the variables operating distance and background IR radiance were replaced by vectors,whose dimensions could be calculated according to gray distribution of background image.Then,a new model which is valid in various backgrounds was established.In order to calculate the infrared signature of complex background... |
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| Keywords: | operating distance complex background IR imaging system IR signature |
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