基于RCS序列的助推段弹道导弹识别

在弹道导弹的助推段,通过低分辨率雷达得到RCS序列作为识别的重要信息。由于运动特性和电磁散射特性的差异,弹道导弹在助推段的RCS序列与其他目标相比具有可识别性,但需要对其RCS序列进行处理。基于目标识别技术,详细阐述能从RCS序列中提取出的特征参数,并通过直方图、N点截图等方法给出了直观的反映。最后,将弹道导弹助推段特征与飞机、燃料舱等典型目标进行对比,得到可以作为识别参量的特征参数,并通过类内类间距离验证了有效性。

Target Recognition for Ballistic Missile Based on Dynamic RCS Time Series

Information obtained by dynamic RCS time series of low-resolution narrowband radar is very helpful to radar target identification,especially to ballistic missile on boost phase. Because of the difference of kinetic and electromagnetic scattering characters,the RCS time series can be recognized from other target. It’s necessary to extract the feature on the boost phase.The method on the technology of target recognition is discussed in detail,and the feature is also showed by N point reduction and column plot. At last,compared with fighter and fuel compartment,typical characteristic parameter is got,and the effectiveness is tested and verified by between-class and within-class distance.