论文部分内容阅读
萨伯导弹公司研制了一种以陆地为基础,用来探测机载目标的被动式红外系统。该系统工作于8—12μm波段,能够扫描360°方位和45°的俯仰角,并且能自动探测目标。本文对系统作一般性的描述,但对信号处理的原理的介绍则要详细得多,这些原理使得系统能够自动探测隐藏在天空和地面背景热杂波中的目标。本文还介绍一种独特的原理,利用这种原理可以消除由近距离内的小物体(鸟)引走的误警。
Saab Missiles has developed a passive land-based passive infrared system to detect airborne targets. The system operates in the 8-12μm band, can scan 360 ° azimuth and 45 ° pitch angle, and can automatically detect the target. This article gives a general description of the system but introduces a much more detailed introduction to the principles of signal processing that allow the system to automatically detect targets hidden in the thermal clutter of the sky and ground backgrounds. This article also introduces a unique principle that uses this principle to eliminate false alarms from small objects (birds) at close range.