Title :
The spatial shift operations on image reconstruction from 2D-FRFT information with application to SAR moving target detection
Author :
Lei Gao ; Lin Qi ; Ling Guan
Author_Institution :
Sch. of Inf. Eng., Zhengzhou Univ., Zhengzhou, China
Abstract :
In this paper, the property of spatial shift operation on image reconstruction from amplitude and phase information in two-dimensional Fractional Fourier Transform (2D-FRFT) is studied through mathematical analysis and computer simulations. From the analysis presented in this paper, the phase information is spatial shift-invariant for image reconstruction in the 2D-FRFT domain while the amplitude information is not. Based on the analysis, we proposed a novel method to detect moving targets in the synthetic aperture radar (SAR) images. The effectiveness of the proposed solution is demonstrated through experiments.
Keywords :
Fourier transforms; image reconstruction; object detection; radar detection; synthetic aperture radar; 2D-FRFT information; SAR moving target detection; amplitude information; computer simulations; image reconstruction; mathematical analysis; phase information; spatial shift-invariant; synthetic aperture radar images; two-dimensional fractional Fourier transform; Computer simulation; Equations; Fourier transforms; Image reconstruction; Synthetic aperture radar; Time-frequency analysis; 2D-FRFT; SAR moving target detection; amplitude information; image reconstruction; phase information; shift operations;
Conference_Titel :
Signal and Information Processing (ChinaSIP), 2013 IEEE China Summit & International Conference on
Conference_Location :
Beijing
DOI :
10.1109/ChinaSIP.2013.6625395
