面向飞机目标探测的波段选择方法  

Band Selection for Aircraft Targets Detection

作　　者：祁鸣[1] 刘德连[2] 张二磊[1] 

机构地区：[1]中国空空导弹研究院,河南洛阳471009 [2]西安电子科技大学技术物理学院,陕西西安710071

出　　处：《红外技术》2011年第8期435-439,共5页Infrared Technology

基　　金：中央高校基本科研业务费(编号:K50510050002;K50510050003);航空科学基金(编号:20090181004)

摘　　要：针对飞机目标的探测与抗干扰问题,提出一种新的面向飞机目标探测的波段选择方法,通过耦合分析飞机目标、背景、大气、成像系统和干扰的特性,建立目标和背景的信噪比模型,确定出探测波段的中心。在此基础上,不断扩展探测波段,并分析信噪比的变化,得到探测波段的宽度。随后,根据干扰目标的辐射特性,添加抗干扰波段,有效解决了目标探测和抗干扰的结合。将所选择的探测波段应用于飞机目标的探测,仿真结果表明我们给出的波段选择方法得到的探测波段能够提高系统探测距离,同时具有一定的抗干扰能力。To improve the performance of detection and anti-jamming of aircraft targets, a new band selection method is proposed. Base on the coupling analysis of the characteristics of aircraft targets, background, atmosphere, detection systems, and infrared-decoy, a signal to noise model （SNR） is build. And the center of the selected band is determined. Next, the width of the selected band is enlarged step by step to show the change of the SNR. As the SNR grows slowly and flatly, the width of the selected band is the final selected band. Subsequently, the characteristics of infrared-decoy are also analyzed. And a supplement band is got for anti-jamming. We test the band selection method by applying our selected bands to aircraft targets detection. The results indicate that the selected bands obtained by our new band selection method can improve the detection performance of aircraft targets and have good ability for Anti-jamming.

关 键 词：波段选择 目标探测 辐射特性 信噪比 

分 类 号：TN219[电子电信—物理电子学]