Sar Moving Target Echo Simulation Method And Its Application

This thesis studied the performance of SAR moving target detection and imaging algorithm by means of simulation. A new SAR raw data simulation method is presented. Using it in the research of MTD and moving target imaging algorithm shows that the simulation method is suitable. The research also shows the way of applying the new simulation data in SAR algorithm analysing.The history and the development of SAR are reviewed first. With the analysis of SAR reflection model for still and moving target most MTD and moving target imaging method are summarized.A new SAR raw data simulation method is then present. The simulation moving target reflection signal is combined with real background reflection data, which generates the simulation SAR raw data. The compound data is tested with the R-D imaging algorithm and the results validate the simulation method.With the simulation raw data, this thesis studies the MTD and moving target imaging algorithm based on spectral-filter. By applying the method on different moving target data, precise velocity estimation and moving target images are acquired. This research shows that the simulation raw data is suitable for MTD and moving target imaging algorithm research, and also indicates the application mode of the new simulation data.