Title :
A Novel Imaging Method for Fast Rotating Targets Based on the Segmental Pseudo Keystone Transform
Author :
Huo, Kai ; Liu, Yongxiang ; Hu, Jiemin ; Jiang, Weidong ; Li, Xiang
Author_Institution :
Res. Inst. of Space Electron. Inf. Technol., Nat. Univ. of Defense Technol., Changsha, China
fDate :
4/1/2011 12:00:00 AM
Abstract :
Fast rotating targets such as gimbaled antennas or propeller blades may cause migration through resolution cells (MTRC) of the high-resolution range profile during the imaging time, which makes the inverse synthetic aperture radar image smeared. To solve this problem, a novel imaging method for fast rotating targets is proposed in this paper. The method is based on the segmental pseudo Keystone transform, which is designed to realize MTRC correction. The fast realization is achieved by employing the discrete match Fourier transform, which makes the algorithm feasible and simple. Experiments with simulated radar data demonstrate the performance of the proposed method.
Keywords :
Fourier transforms; image resolution; image segmentation; radar imaging; synthetic aperture radar; target tracking; Fourier transform; fast rotating targets; inverse synthetic aperture radar image; migration through resolution cells; segmental pseudo Keystone transform; Discrete match Fourier transform (DMFT); fast rotating targets; migration through resolution cells (MTRC); segmental pseudo Keystone transform (SPKT);
Journal_Title :
Geoscience and Remote Sensing, IEEE Transactions on
DOI :
10.1109/TGRS.2010.2077301