脉冲激光引信的信号特征提取方法及应用(特邀)

激光引信具有抗电磁干扰能力强、定角/测距精度高和系统体积小等优点，因较高的虚警率在防空导弹领域未得到的广泛应用。通过对信号特征提取方法的等级分析，讨论了激光引信回波信号的能量、延时、脉宽特征提取方法以及信息融合对抗干扰性能和引战配合效率的贡献。以防空导弹周视激光引信为背景，采用线阵探测器，设计了一种基于多特征的目标识别算法，明显提高了目标探测的可靠性，具备在110 m能见度下正确检测典型反舰导弹目标的能力。

Feature extraction methods and applications of signal feature for pulse laser fuze(Invited)

The laser fuze has advantages of strong anti-electromagnetic interference, high fixed angle and ranging precision, and small size. However, laser fuze's application isn't wide in air defense missiles because of the high false alarm rate. By analyzing the levels of signal feature extraction methods, the contributions of laser echo signal's features to anti-jamming performance and coordinated efficiency of fuze and warhead were discussed, including its energy, delay, pulse width, and information fusion. Then, based on an air defense missile's panoramic laser fuze, the target recognition algorithm was designed using linear array detector. The reliability of target detection is improved obviously, while the visibility of smoke coming down to 110 m, the laser fuze can still detect target exactly.