本文提出的基于红外面阵焦平面探测器的红外搜索跟踪系统与基于红外线线阵焦平面探测器的相比，其结构简单、成本低且具有自动搜索、跟踪和确认威胁目标的功能。本文重点论证了在全方位红外警戒系统中使用面阵探测器的可行性；在该分析的基础上，给出了该系统的图像退化模型；论证了在全方位搜索系统中，目标检测算法的处理思路，并分析了使用面阵探测器的优势。并且通过实验结果，证明基于面阵探测器的红外搜索系统是具有和线阵系统相当的目标探测距离，可以检测出信噪比在2左右的目标；并且在背景杂波处理上，在一定程度上优于线阵探测器。
Abstract
The infrared search and track (IRST) system based on the area infrared focal plane array (AFPA) detector proposed in the paper has simple structure, lower cost and the same functions of au-tonomous search, track and confirming threat target as compared with that based on the linear infrared focal plane array(LFPA) detector. The feasibility of using AFPA in omnidirectional infrared warning system was demonstrated; based on the demonstration, the point scattering function (PSF) of degra?dation model images blurred by AFPAs，rotations was presented; the train of thought of processing the target detection algorithm was demonstrated and the advantage of using the AFPA detector was ana?lyzed .The experiment results show that as compared with the IRST system based on the LFPA detec?tor, that based on the AFPA detector has equal detection distance, can detect the target within in?frared image with SNR higher than 2 and is better than the former in processing the background clut?ter.
关键词
光电子学与激光技术 /
红外技术 /
红外拽索跟踪系统 /
IRST /
面阵探测器
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Key words
optoelectronics and laser /
infrared technique /
infrared search and track system /
IRST /
area infrared focal plane array
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参考文献
[1] De Maarten V, Piet B W，Johannes F, et al. Passive ranging us?ing an infrared search and track sensor [J]. Optical Engineering, 2006,45(2):1-14.
[2]晋培利，李晓林，毛登森，等.红外预警探测系统的现状和发展 [J].光电技术应用，2006,21(3) :1-4.
JIN Pei-li, Li Xiao-lin, MAO Deng-sen, et a1. Current situation and future development ot IR detection systems for early warning [J]. Electro-optic Technology Application, 2006，21 (3) ； I - 4. (in Chinese)
[3] Venkateswarlu R, Er M H, Tam S C, et al. Design considera?tions of IRST system[J]. Proc SPIE, 1997，3061 ： 591 — 602.
[4] 李卫华，吴常泳，吴东，等.面阵焦平面探测器扫描图像模糊 的退化模型及复原[J].激光与光电子学进展，2005，10(42):32 -35.
LI Wei-hua, WU Chang-yong，WU Dong, et al. Degradation model and restoration of images blurred by IRf PAs ’ rotation [ J ]. Laster & Optoelectronics Progress, 2005，10(42)： 32-35. (in Cmnese )
[5] 艾斯卡尔.红外搜寻与跟踪系统关键技术研究[D].成都：电子 科技大学，2003.
AiSiKaer. IRST system improvements for detection and tracking of DIM moving point targets in heavy clutter[D] ? Chengdu： Uni?versity of Electronic Science and Technology of China, 2003. (in Chinese)
[6] David B R. Spatial signal processing for infrared detection [ J ]. Proc SPIE, 1994, 2235： 38-51.
[7] 郑文龙，张涌，汤心溢，等.复杂背景下红外小目标实日只别方 法研究[J].红外与毫米波学报,2001,20(6):433-436. ZHENG Wen-long, ZHANG Yong, TANG Xin-yi，et al. Real?time recognition of infrared small targets in complicated IR back- ground[ J]. Journal of Infrared and Millimeter Waves, 2001, 20(6) ：433 - 436. (in Chinese)
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脚注
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