复杂背景红外成像系统作用距离估算方法

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

1.
北京航空航天大学电子信息工程学院, 北京 10019
2. 中国空空导弹研究院, 洛阳 471009

基金项目: 航空科学基金资助项目(20070112001);北航博士研究生创新基金资助项目

详细信息

作者简介:
刁伟鹤(1984-), 男, 吉林磐石人, 博士生,diaoweihe@163.com.

中图分类号: TN 21
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- 被引次数: 0
出版历程
- 收稿日期: 2008-07-21
- 网络出版日期: 2009-08-31

Method for estimating operating distance of IR imaging system under complex backgrounds

1.
School of Electronics and Information Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China
2. China Airborne Missile Academy, Luoyang 471009, China

摘要

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.
- 作用距离 /
- 复杂背景 /
- 红外成像系统 /
- 红外辐射特性
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, a new method that gets radiance from image gray value by establishing radiance-gray function was proposed here. The operating distance calculation instance shows that the new model can accurately estimate the operating distance under complex backgrounds.
- operating distance /
- complex background /
- IR imaging system /
- IR signature

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参考文献(1)

[1] Richard D Hundson, Jr. Infrared system engineering [M]. New York: John Wiley & Sons Inc, 1969: 62-91 [2] Wu Hanping, Yi Xinjian. Operating distance equation and its equivalent test for infrared search system with full orientation [J]. International Journal of Infrared and Millimeter Waver, 2003, 24(12):2059-2068 [3] Wu Hanping, Chen Xiqu, Yi Xinjian. Operating distance and comprehensive performance evaluation for infrared searching system [J]. International Journal of Infrared and Millimeter Waver, 2006, 27(6):903-912 [4] Datta P K, Kumar A, Nijhawan O P. Range estimation of thermal imaging system from MRTD and MTF measurement [J]. Optik, 1994, 97(1): 1-3 [5] 王卫华, 牛照东, 陈曾平. 海空背景凝视红外成像系统作用距离研究[J]. 红外与毫米波学报, 2006, 25(2): 150-152 Wang Weihua, Niu Zhaodong, Chen Zengping. Research on the operating range of staring IR imaging system in sea-sky background [J]. J Infrared Millim Waves, 2006, 25(2): 150-152 (in Chinese) [6] 王美, 沈国土, 杨宝成, 等. 小目标和海天背景红外热像模拟[J]. 兵工学报, 2007, 28(5): 561-564 Wang Mei, Shen Guotu, Yang Baocheng, et al. Simulation of infrared images of small target and sea and sky background [J]. Acta Arm amentarii, 2007, 28(5): 561-564(in Chinese) [7] 宣益民, 李德仓, 韩玉阁. 复杂地面背景的红外热像合成[J]. 红外与毫米波学报, 2002, 21(2):133-136 Xuan Yimin, Li Dechang, Han Yuge. Synthetic infrared image of complicated terrain background [J]. J Infrared Millim Waves, 2002, 21(2):133-136 (in Chinese) [8] 韩玉阁, 刘荣辉, 宣益民. 复杂地面背景红外热像模拟[J]. 南京理工大学学报, 2007, 31(4):487-490 Han Yuge, Liu Ronghui, Xuan Yiming. Infrared image simulation of complex terrain background [J]. Journal of Nanjing University of Science and Technology, 2007, 31(4):487-490(in Chinese)

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