基于微动特征的飞机目标识别

Recognition of Aircraft Targets Based on Micro-motion Feature

微动作为运动目标的重要特性,反映了其运动的精细性,它可以成为目标识别中稳健的特征。本文分析了运动目标的微多普勒特征,并通过提取运动目标的微多普勒特征进行雷达目标识别,仿真实验验证了提取微多勒特征实现分类识别的有效性,实地检飞试验也表明了微多普勒特征对直升机、螺旋浆飞机和喷气式飞机的较好识别效果。

As an important characteristic of moving targets, micro-motion can reflect its motion fine feature, which can be used as robust feature to identify radar targets. Micro-Doppler feature of moving targets is analyzed, and radar target recognition is performed by extracting miro-Doppler feature of moving target. The simulation experiment verifies effectiveness of realizing classification and recognition by extracting micro-Doppler features; and the practical flight test indicates that Micro-Doppler features have favorable effects on recognition of helicopters, propeller-driven aircrafts and jet aircrafts.