基于导引头信噪比的红外烟幕干扰效果评估  

Effect evaluation on IR smoke screen jamming based on SNR of seeker

作　　者：薛鹏[1] 董文锋[1] 都元松 王良斯[1] 

机构地区：[1]空军预警学院,武汉430019

出　　处：《空军预警学院学报》2017年第5期351-353,364,共4页Journal of Air Force Early Warning Academy

摘　　要：为研究红外烟幕干扰效果,根据烟幕透过率变化引起导引头信噪比(SNR)变化的情况,建立了红外烟幕干扰效果评估模型;结合MODTRAN软件计算出的大气透过率结果,仿真分析了风速、大气垂直稳定度和地面粗糙度等因素对烟幕干扰效果的影响.仿真结果表明,烟幕对红外成像制导具有良好的干扰效果,风速对烟幕干扰效果的发挥影响最为严重,大气垂直稳定度和地面粗糙度等其他自然因素对其也有不同程度的影响.In order to research the jamming effect evaluation of smoke screen, this paper establishes a jamming effect evaluation model of IR smoke screen from the point of view of the seeker's SNR caused by smoke screen transmittance. Combined with the results of atmospheric transmittance calculated by MODTRAN software,the paper simulates and analyzes the influence of wind speed, atmospheric vertical stability and ground roughness on the effect of smoke jamming. The simulation results show that the smoke screen has good jamming effect on the infrared imaging guidance; wind speed has severe influence on the smoke jamming, and the other natural factors, such as the atmospheric vertical stability and ground roughness also have different degrees of influence on it.

关 键 词：红外烟幕 干扰效果 导引头 透过率 信噪比 

分 类 号：TN977[电子电信—信号与信息处理]