两代天基红外传感器对隐身飞机尾焰探测能力分析  

Analysis on detection capability of two-generation space-based infrared sensors on the tail-flame of stealth aircraft

作　　者：田浩[1] 王旌尧 徐伟[1] 邢妍[1] 周明亮 TIAN Hao;WANG Jingyao;XUWei;XING Yan;ZHOU Mingliang(Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China)

机构地区：[1]中国科学院长春光学精密机械与物理研究所,长春130033

出　　处：《空天预警研究学报》2024年第2期99-103,共5页JOURNAL OF AIR & SPACE EARLY WARNING RESEARCH

基　　金：国家自然青年科学基金项目(62105326);长春市科技发展计划项目(23SH02)。

摘　　要：为了对比两代天基红外传感器对隐身飞机尾焰的探测能力,以美国SBIRS-GEO和Next-Gen OPIR星座作为研究对象,通过建立高轨红外探测模型以及构建对应的预警探测场景,对两代探测器在不同飞行状态时飞机尾焰的辐亮度响应特性和模拟成像效果进行量化对比.研究结果表明,两代天基红外探测器都可以用来探测飞机尾焰信号;飞机加力对尾焰温度和外形有显著影响,成为影响天基红外传感器探测性能的关键因素;Next-Gen OPIR搭载的新一代传感器可以在36000 km高度捕获和发现处于非加力状态的尾焰,其成像信噪比明显高于SBIRS-GEO传感器对处于加力状态尾焰的信噪比.In order to compare the detection capability of the two-generation space-based infrared sensors on the tail flame of stealth aircraft,the American SBIRS-GEO and Next-Gen OPIR constellations are taken as the research objects,and by establishing the high-orbit infrared detection model and constructing the corresponding early-warning detection scenes,quantitative comparison is made on the radiance response of the two-generation sensors to the aircraft tail-flame of different flight states,as well as the simulation imaging effect.The results of research are shown as follows:The two-generation space-based infrared sensors can be used to detect aircraft tail-flame signals.Aircraft afterburner has a significant effect on the temperature and shape of the tail-flame,which is a key factor affecting the detection performance of space-based infrared sensors.The new-generation sensors carried by Next-Gen OPIR can capture and detect the tail-flame in a non-afterburner state at an altitude of 36,000 km,and their imaging signal-to-noise ratio is significantly higher than that of the SBIRS-GEO sensors for the tail-flame in the afterburner state.The observation angle of satellite also has a non-negligible influence on the detection performance of aircraft tail-flame.

关 键 词：红外传感器 天基预警 隐身飞机 暗弱目标 尾焰 

分 类 号：TN976[电子电信—信号与信息处理]