空天预警研究学报2023，Vol.37Issue(4)：244-251,8.DOI:10.3969/j.issn.2097-180X.2023.04.003
复杂背景下低轨红外探测器对隐身飞机目标的探测性分析
Analysis on detectability of stealth aircraft targets by low orbit infrared detectors in complex backgrounds
摘要
Abstract
Taking the STSS LEO space-based infrared detection platform as an example,this paper analyzes the capability of low earth orbit infrared detector to detect a foreign stealth aircraft target.The paper first performs the aerodynamic thermal analyses on the fuselage,thermal analysis of engine nozzle and tail flame,as well as radi-ation analysis of the stealth aircraft target,and then makes quantitative analyses on the spectral radiation character-istics and coupling characteristics of ocean-cloud-atmosphere,calculating to obtain the distribution of infrared ra-diation intensity under the given detection scenario(longitude and latitude,season,period of time,wind speed,light and atmosphere)and the given detection spectral range.Finally,based on the above analysis results,the pa-per presents the analysis on detection capability of sub-satellite point mode.The results show that,in the observa-tion mode of sub-satellite point,STSS LEO Demo infrared detector has the lowest SNR 19.2～26.1 under cloud oc-clusion,which is significantly higher than the threshold SNR 6,and thus it can completely pass through cloud-sea background to detect and identify the tail flame radiation signal of stealth aircraft targets.关键词
红外探测器/隐身飞机/云海背景/近地轨道/信噪比Key words
infrared detector/stealth aircraft/cloud-sea background/LEO/signal-to-noise ratio(SNR)分类
信息技术与安全科学引用本文复制引用
田浩,胡海飞,蔡盛,王久龙,徐伟..复杂背景下低轨红外探测器对隐身飞机目标的探测性分析[J].空天预警研究学报,2023,37(4):244-251,8.基金项目
国家自然科学基金资助项目(62175234) （62175234）
吉林省优秀青年科技人才项目(20230508111RC) （20230508111RC）
吉林省科技发展计划项目(20210203151SF) （20210203151SF）
