毫米波主被动阵列探测技术

Detection Technique of Millimeter Wave Active/Passive Array

针对单通道探测的不足,提出了毫米波主被动阵列探测技术,为导引头提供更加真实详细的目标信息。主被动复合探测体制可以结合雷达和辐射计的优点,远程时使用主动探测,可以增加探测距离,近程时使用被动探测,可以避免角闪烁。当弹丸以一定转速垂直下落时,毫米波波束和弹轴成特定角度对地面作螺旋圆锥扫描,当波束扫描过目标时,探测器阵列输出与目标相对应的信号,通过对各个通道信号作相关处理判断即可确定目标的精确方位,此时输出修正或起爆信号。试验表明该技术能够精确探测目标中心。

Millimeter wave （MMW） active/passive array detection technique is deficiencies of a single channel MMW detection system, which can provide more de prese tailed nted to reduce information of target for seeker. Combining MMW radiometer and radar, the performance of active/passive combined while the passive detection is used in near range to avoid glint. When the rotational shell falls at a certain vertical speed, the MMW beam is spiral scanning into the ground off shell rotation axis. The array detector outputs corresponding signal when MMW beam scans over a target. DSP calculates the cross correlation of signals in various channels to determine the exact target location, and then outputs the amending signal or detonation signal. Test result shows that this system has a better performance in detecting target center