摘要
讨论了３ ～５μｍ 波段范围内窗口辐射及大气噪声的分布情况，指出３－３ ～３－６μｍ 为红外导引头工作的理想波段。对大气透过率和天空背景辐射进行了初步分析，指出高度为其最主要影响因素。采用信噪比来表征导引头系统的探测能力，进行了导引头相关参数的评估和初始化，仿真表明影响导引头探测能力的主要噪声来自光学系统本身，大气透过率对红外导引头探测能力有着直接的影响。
Distribution of window radiance & atmospheric noise during 3～5μm wave band is presented, it is pointed out that 3.3～3.6μm is an ideal working band of infrared seeker. Fundamental analysis of atmospheric transmission & sky background radiance is carried out, height is regarded as the key factor. Signal noise ratio is taken to mark the detective capability of IR seeker, and related parameters of seeker are discussed. Simulation shows that major noise which influences the detective capability of IR seeker is from the optical system. Atmospheric transmission has direct influence effect on the detective capability of IR seeker. \;
出处
《红外与激光工程》
EI
CSCD
1999年第6期68-71,共4页
Infrared and Laser Engineering
