ISAR Imaging of Fast-moving Target Based on FRFT Range Compression

摘要：

The echo signal of fast-moving target is established. In conventional reconstruction algorithm, the Discrete Fourier Transform (DFT) is used to accomplished range compression. However for the fast-moving target, range dispersion will occur in the DFT range compression, deriving from the high-speed radial motion. It will distort the range profile and defocus the ISAR image. A new reconstruction algorithm is proposed, which use Fractional Fourier Transform (FRFT) instead of DFT to implement the range compression. The analysis indicates that the new algorithm can avoid the range dispersion and achieve refocused ISAR image effectively. The simulation results show the good performance of the new algorithm.

作者: Yin Zhiping Fu Zhen Wang Dongjin Chen Weidong

作者单位: EEIS,University of Science and Technology of China,HeiFei,AnHui,230027,P.R.China

会议类型: 国际会议

会议名称: 首届亚太合成孔径雷达会议(1st Asian and Pacific Conference on Synthetic Aperture Radar Proceedings)

会议地点: 安徽黄山

会议语种:英文

在线出版日期: 2007-11-05（万方平台首次上网日期，不代表论文的发表时间）