摘要
巡航导弹体积小和低空飞行的特点,使得其具有目标红外辐射强度小、地面背景干扰大以及低空大气对其红外辐射的透过率低的优点。为了准确计算红外导引头对巡航导弹的探测距离,文章对巡航导弹的红外辐射特性以及地面背景的红外辐射特性进行了分析,进一步建立了红外导引头对巡航导弹探测距离的计算模型。提出了利用图解法对作用距离方程进行解算的方法,提高了作用距离模型的计算准确度。利用所建模型计算了某中距离红外导引头对一种巡航导弹的探测距离。计算结果表明,导引头对该巡航导弹的探测距离远小于对常规空中目标的探测距离,尤其在8μm～12μm波段,迎头方向无法探测。
Because of small size and low flying height, a cruise missile has the features of low radiant intensity, strong background interference and low atmospheric transmission. To calculate the detection distance of an infrared homing head upon a cruise missile exactly, the infrared radiation characteristics of both a cruise misile and its terrain background are analyzed and then a model for calculating the detection distance of an infrared homing head upon a cruise missile is established in this paper. A graphic method which can improve the calculation accuracy of the model is proposed so as to solve the equation of detection distance. The detection distance of a certain midrange infrared homing head upon a cruise missile is calculated by using this model. The calculation results show that the detection distance of the infrared homing head upon a cruise missile is far less than its detection distance upon a conventional air target. Especially in the waveband of 8μm-12μm, the target can not be detected in the head-on direction.
出处
《红外》
CAS
2008年第2期26-30,37,共6页
Infrared
关键词
红外导引头
探测距离
巡航导弹
地面背景
infrared homing head
detection distance
cruise missile
terrain background
