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

Volume

49

Issue

4

fYear

2011

fDate

4/1/2011 12:00:00 AM

Firstpage

1464

Lastpage

1472

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);

fLanguage

English

Journal_Title

Geoscience and Remote Sensing, IEEE Transactions on

Publisher

ieee

ISSN

0196-2892

Type

jour

DOI

10.1109/TGRS.2010.2077301

Filename

5611593