本文采用时频分析对仿真数据进行成像，数据来自网上，时频分析的方法采用spwvd，以去除交叉项，最后附上本文的成像结果。-In this paper, time-frequency analysis of simulation data imaging, data from the Internet, Time-Frequency Analysis Methods spwvd, to remove cross-term, and finally attached to the imaging results of this paper.