双模型空中目标红外谱段的联合SNCR评估方法
投稿时间:2019-03-15  修订日期:2019-08-27  点此下载全文
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作者单位E-mail
张磊 北京跟踪与通信技术研究所 rosa1982@163.com 
陈略 中国科学院上海技术物理研究所 1041739493@qq.com 
朱含露 中国科学院上海技术物理研究所 zhuhanlu19920@163.com 
饶鹏 中国科学院上海技术物理研究所 peng_rao@mail.sitp.ac.cn 
中文摘要:在天基平台下实现对空中飞机目标的探测,存在距离远、目标信号弱、背景杂波复杂和探测器噪声等的影响,因此,要获取目标的最强信号,确定在探测过程中的谱段至关重要。为此系统性地建立了飞机羽流的梯形羽流和锥形羽流仿真模型,并提出了利用信噪比(SNR)和信杂比(SCR)联合的SNCR方法对空中目标的探测谱段进行确定。实验结果表明:针对空中目标,不同目标SNCR值不同,但峰值区域不变,由此方法可以确定探测谱段,并最终确定探测的谱段分别为:中波波段为3.7~4.15μm,波段间隔在0.3μm以上;长波波段为8~12μm,波段间隔在0.35μm以上。
中文关键词:双模型  空中目标  红外谱段  SNCR
 
Combining-SNCR Evaluation of Dual-Models Aerial Targets’Infrared Bands
Abstract:The detection of the aerial targets on the space-based platform has the effects of long distance,weak signal of targets ,complex background clutters and noises from detectors,therefore,it is extremely important to determine the bands during the process of detection,which can obtains the strongest signal.The trapezoidal plume and cone plume simulation model of aircraft plume are systematically established,and a SNCR method combining the signal to noisy ratio(SNR) and the signal to clutter ratio(SCR) is proposed to determine the detection bands .The experimental result shows that,for aerial targets,they have different SNCR values ,but with the same peak value.According to the method mentioned above,bands have been determined and eventually been determined the values as follow:3.7~4.15μm in MWIR band,in which interval is not less than 0.3μm,8~12μm in LWIR band,in which interval is not less than 0.3μm.
keywords:Dual-model,Aerial target,Infrared bands,SNRC
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