建立了激光微多普勒效应探测系统，开展了利用激光微多普勒效应探测运动目标微小振动的实验研究。特征提取的结果表明：时－频分析方法适合于时变微多普勒信号的分析，能够有效地提取出运动目标的振动特征。

Based on laser micro-Doppler effect, the detection research on the micro-vibration of moving target is developed. The results of feature extraction indicate that the time-frequency analysis method is fit for the analysis of time-varying micro-Doppler signal, and the vibration signature of the moving target can be effectively extracted.