Multiple Aperture Mapdrift Algorithm Combined with Time-frequency Analysis for Moving Train Imaging
A new autofocusing algorithm, i.e. multiple aperture mapdrift algorithm combined with time-frequency analysis technique is proposed and applied to moving train imaging. The trains moving information is obtained by using time-frequency analysis. An extended mapdrift algorithm, multiple aperture mapdrift, is utilized to estimate the 3 rd order polynomial phase error, which is induced by the acceleration of the train. Experiment results show that the focusing performance of the algorithm is satisfied.
Yuan Deng Yunhua Zhang
Center for Space Science and Applied Research, Chinese Academy of SciencesBeijing, China Center for Space Science and Applied Research, Chinese Academy of Sciences Beijing, China
国际会议
第九届国际天线、电波传播及电磁理论学术研讨会(ISAPE2010)
广州
英文
1-4
2010-11-29（万方平台首次上网日期，不代表论文的发表时间）