基于帕尔帖效应的动态红外迷彩的机理与实现

相关跟踪算法是红外成像末制导阶段的一种重要跟踪算法,针对该算法,提出一种动态红外迷彩伪装技术,该技术是可控的新型红外伪装手段,它是通过迅速降低目标与背景红外图像帧与帧之间相关度,从而使红外跟踪系统对地面目标的跟踪丢失。在分析红外跟踪系统的相关算法及动态红外伪装原理的基础上,研究了一种基于帕尔帖效应的半导体制冷/制热技术和计算机控制技术的动态红外迷彩伪装技术,并研制了一套实现动态红外迷彩伪装的原理样机。最后,对该样机进行了综合测试和深入分析,结果表明:该样机的相邻两帧红外图像的相关系数均小于0.7,且次高峰与最高峰比较相似,因此该技术可以有效对抗红外系统的相关跟踪。

Mechanism and implementation of dynamic IR pattern painting based on Peltier effect

A correlation tracking algorithm was an important tracking algorithm in the endgame of infrared imaging guidance.Being dead against this algorithm,a dynamic infrared pattern painting camouflage was put forward,and the technology was a new type of controllable infrared camouflage means,which could lead to the failure of infrared tracking system tracking the ground targets by quickly lowering the correlation between two contiguous frames of the target and background images.According to the analysis of correlation algorithm of infrared tracking system and the principle of dynamic camouflage,a dynamic infrared pattern painting camouflage technology,based on semiconductor refrigeration device with the Peltier effect and the computer controlling technoloy was researched,and a dynamic infrared pattern painting camouflage prototype machine was designed.Finally,the performance of the prototype machine was tested by experiments,and the results show that any correlation coefficient between two contiguous frames of the images is less than 0.7 and subaltern peak and main peak are rather similar.Therefore,the prototype system can be effective against infrared correlation tracking.