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针对二极管阵列激光告警系统,介绍了激光告警天线的窗口布局,分析了水平及俯仰方向的激光方位识别原理,建立了激光威胁信号的方向识别模型。利用水平方向识别模型对某典型设备展开分析,深入开展了增大探测窗口视场对告警系统方位分辨精度影响的研究,为激光告警设备水平方向的识别提出了一种新的设计方案。通过对比分析得出结论:该方法在保持系统角分辨精度的情况下降低了告警系统的虚警率。与采用多元相关探测技术相比,激光告警系统探测单元减少了一倍,且体积小、功耗低、成本低。
Aiming at the diode array laser warning system, the window layout of laser alarming antenna is introduced. The principle of laser azimuth recognition in horizontal and tilting directions is analyzed. The direction recognition model of laser threat signal is established. The horizontal direction identification model is used to analyze a typical equipment. The research on how to increase the azimuth resolution of the warning system by increasing the field of view of the detection window is carried out. A new design scheme is proposed for the horizontal identification of the laser warning device. Through the comparative analysis, it is concluded that this method reduces the false alarm rate of the alarm system while maintaining the accuracy of system angular resolution. Compared with the multi-correlation detection technology, laser detection system to reduce the detection unit doubled, and small size, low power consumption, low cost.