Applications of Pseudo-polar FFT in Synthetic Aperture Radiometer Imaging
In this study we analyzed the potential use of Pseudo-Polar FFT algorithm for image reconstruction of synthetic aperture radiometer, and developed an effective method to improve the image reconstruction accuracy and computational efficiency simultaneously. The advantage of the new algorithm is that it takes pseudo-polar grid instead of Cartesian grid to perform the inverse Fourier transform, and it involves only 1-D interpolation, which leading to a more fast and accurate performance. As a critical stage, the interpolation algorithms that perform the changing from polar grid to pseudo-polar grid are present. At last, the superiority of the new algorithm is validated by numerical simulation. It is believed that the new approach may have wide-spread application in science and practice for synthetic aperture radiometer system.
Cheng Zhang Ji Wu Weiying Sun
Center for Space Science and Applied Research, CAS, Beijing, China Graduate University of Chinese Ac Center for Space Science and Applied Research, CAS, Beijing, China
国际会议
Progress in Electromagnetics Research Symposium 2007(2007年电磁学研究新进展学术研讨会)(PIERS 2007)
北京
英文
925-930
2007-03-26（万方平台首次上网日期，不代表论文的发表时间）