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激光引信如何抗云、烟环境干扰一直以来为该领域的研究热点。利用人工实体目标反射与烟雾后向散射回波的偏振度差异,设计了一种基于偏振探测的激光引信。该探测系统对烟雾后向散射信号产生消光效应远大于目标探测信号,选择性的降低了引信接收烟雾后向散射信号的能力。并结合激光引信的阈值探测原理和探测概率曲线,理论计算了该偏振探测系统对烟雾的探测概率降低到原探测系统的0.4%。最后结合工程研制经验,分析了该探测系统通过系列措施,既能保证其对目标的探测,又可大幅降低对烟雾的探测概率,而有望成为本质提高激光引信抗环境干扰的新方法。
How laser fuze anti-cloud, smoke environment has always been the focus of research in this area. Based on the difference of polarizability of artificial target reflection and backscattering smoke, a laser fuze based on polarization detection was designed. The detection system has a much greater extinction effect on the backscattering signal of the smoke than the target detection signal and selectively reduces the ability of the fuze to receive the backscattering signal of the smoke. Combined with the threshold detection principle and probing probability curve of laser fuze, the probability of detection of smoke by this polarization detection system is reduced to 0.4% of the original detection system. Finally, combined with the experience of engineering development, it is analyzed that the detection system through a series of measures can not only ensure its target detection, but also greatly reduce the probability of detection of smoke, which is expected to become a new way to improve the anti-environmental interference of laser fuze.