CAJ | 학술논문

超大视场红外鱼眼告警系统具有凝视半球空域,实时感知来自空中不同方向威胁的独特优点,在未来战争中必将有着广泛的应用.而对超大视场红外鱼眼告警系统的成像响应特性进行分析有助于解决其在应用中所出现的问题.对系统的温度响应特性、时间响应特性以及像面照度进行了分析,结果表明,在相同的环境温度下,系统的温度响应特性是线性的,且随着时间的推移系统的输出逐渐变大,在约70 min以后趋于稳定；当环境温度升高时,系统输出也相应变大,说明系统存在着能量漂移.通过对实验结果的进一步分析,结果表明,这种能量漂移是环境温度和系统的自热效应共同作用的结果.通过对同一目标不同位置处的灰度值进行分析,发现灰度值相对标准偏差仅为2.26％,说明不同位置处目标的灰度值几乎是相等的,从而表明系统的像面照度是均匀的,这与随后的理论分析相一致.对于超大视场红外鱼眼告警系统的算法设计方面具有重要的参考价值.
초대시장홍외어안고경계통구유응시반구공역,실시감지래자공중불동방향위협적독특우점,재미래전쟁중필장유착엄범적응용.이대초대시장홍외어안고경계통적성상향응특성진행분석유조우해결기재응용중소출현적문제.대계통적온도향응특성、시간향응특성이급상면조도진행료분석,결과표명,재상동적배경온도하,계통적온도향응특성시선성적,차수착시간적추이계통적수출축점변대,재약70 min이후추우은정；당배경온도승고시,계통수출야상응변대,설명계통존재착능량표이.통과대실험결과적진일보분석,결과표명,저충능량표이시배경온도화계통적자열효응공동작용적결과.통과대동일목표불동위치처적회도치진행분석,발현회도치상대표준편차부위2.26％,설명불동위치처목표적회도치궤호시상등적,종이표명계통적상면조도시균균적,저여수후적이론분석상일치.대우초대시장홍외어안고경계통적산법설계방면구유중요적삼고개치.
The ultra-wide field of view(UWFV)infrared fish-eye warning system has the ability of staring hemisphere space so that it can sense the threats from different directions at real time,which makes it be widely used in the future modern wars.It will be helpful in solving the problems in practical application to analyze the thermal imaging response characteristics of UWFV infrared fish-eye warning system.In this paper,the thermal imaging response characteristics including temperature response,time response and image illumination were analyzed respectively for UWFV infrared fish-eye warning system.It was found that under the same ambient temperature condition,the system temperature response was linear.With the process of time,the system output became bigger gradually,and it tended to be a fixed value after about 70 minutes.When the ambient temperature got higher,the system output was also increased,which indicated the exist of energy jitter.The experimental results show that the energy jitter is the co-action result of the ambient temperature and the self-heated effect.With the analysis of the gray values of the same target in different positions,it is found that the gray value relative standard deviation (RSD)is only 2.26％,which indicates that the target gray values in different positions are nearly equal,and hence it is proved that the system image illumination is uniform,which is consistent with the theory analysis.The result of this paper will have an important reference value in designing the algorithms for the UWFV infrared fish-eye warning system.