对雷达多目标回波信号进行了分析，针对采用传统时域、频域分析方法不能正确全面地反映信号细节信息特点，针对试验获取的含有多目标信息的真实数据，采用魏格纳-维尔分布、短时傅里叶变换、小波变换等时频分析的方法对这砦数据进行了多目标分辨的时频分析和仿真比较，找到适合工程实现的多同标分辨时频方法，并给出了实测信号的时频仿真结果。

This paper analyses the multi-target signal of radar echo which characteristics can not be got by using traditional time domain and frequency analysis method. In this paper, time-frequency analysis methods are compared by computer simulation and the proper method is obtained, which is suitable for application. At the same time, this paper presents time-frequency analysis result of experimental data.

TN957.51