弹道目标电磁特征提取技术的研究进展

随着弹道导弹突防和防御技术研究的不断深入，对目标特征提取提出了更加严格的要求。在突防设计中需要对目标和诱饵进行特征控制，以提升突防能力；在防御系统中，则需要从多传感器获取的信息中提取目标各种特征，以实现真假弹头的区分。分析和研究了弹道导弹中段目标电磁特征提取技术以及近年取得的成果，包括中段复杂目标逆合成孔径雷达成像技术、目标几何特性反演技术、目标微动特征提取技术等，最后对弹道目标特征提取技术的难点进行了分析，提出了一些解决思路。

Achievements of electromagnetic characteristic extracting of ballistic targets

With the research on ballistic missile penetration and defense growing profoundly, target feature extraction becomes more rigorous. Flexible control of warhead and decoys’features is important so as to gain better penetration, while various features extracted from multi-sensors’data are key steps for distinguishing warhead and decoys in ballistic missile defense system. The achievements and technique on electromagnetic feature extraction of ballistic missile and decoy are investigated including the ISAR of complex motion targets, the geometrical characteristics extraction of ballistic targets, and the micro-Doppler feature extraction. Finally, the difficulties of ballistic target feature extraction are pointed out and some feature extraction ideas are given.