Journal of University of Chinese Academy of Sciences >
A SAR image side-lobes reduction method based on CLEAN
Received date: 2010-06-07
Revised date: 2010-08-10
Online published: 2011-05-15
The CLEAN algorithm, which is often used in the image processing, is incorporated effectively into SAR (synthetic aperture radar) imaging algorithm, and a SAR image side-lobes reduction method based on CLEAN is proposed. By analyzing the process of this method and comparing the imaging results of point target with the oceanic sparse scene imaging results of the RADARSAT-1 raw data, we come to the conclusion that the proposed method can effectively suppress the side-lobes of the targets while preserving the SAR image resolution.
Key words: CLEAN; SAR (synthetic aperture radar); suppression of side-lobes
LIN Qing-Yuan , WANG Yan-Ping , HONG Wen . A SAR image side-lobes reduction method based on CLEAN[J]. Journal of University of Chinese Academy of Sciences, 2011 , 28(3) : 355 -359 . DOI: 10.7523/j.issn.2095-6134.2011.3.012
[1] Hogbom J A. Aperture synthesis with a non-regular distribution of interferometer baselines
[J]. Astron Astrophys Suppl, 1974, 15: 417-426.
[2] Tsao J, Steinberg B D. Reduction of sidelobe and speckle artifacts in microwave imaging: the CLEAN technique
[J]. IEEE Transactions on Antennas and Propagation, 1988, 36(4): 543-556.
[3] He Y T, Jiang Y S, Zhong Y. An application of the CLEAN algorithm in airborne mm-wave synthetic aperture imaging
[J]. Journal of Electronics & Information Technology, 2007, 29(7):1756-1760(in Chinese). 何云涛,江月松,钟宇.CLEAN算法在机载毫米波综合孔径成像中的应用
[J]. 电子与信息学报,2007,29(7): 1756-1760.
[4] Huang X H, Qiu Z K, Xu R C. ISAR imaging of space object in orbit
[J]. Journal of Data Acquisition & Processing, 2005, 20(2): 203-207(in Chinese). 黄小红,邱兆坤,许人灿.空间轨道目标ISAR成像方法
[J]. 数据采集与处理, 2005, 20(2): 203-207.
[5] Ranjan B. Two-dimensional evolutionary programming-based CLEAN
[J]. IEEE Transactions on Aerospace and Electronic Systems, 2003, 39(1): 373-382.
[6] 皮亦鸣,杨建宇,付毓生,等.合成孔径雷达成像原理
[M]. 成都:电子科技大学出版社,2007.
[7] Cumming I G, Frank H Wong. 合成孔径雷达成像——算法与实现
[M].洪文,胡东辉,等,译.北京: 电子工业出版社,2007.
[8] Wang Q, Wan X R, Yang Z J, et al. Signal processing for discontinuous spectra FMICW based on CLEAN algorithm
[J]. Chinese Journal of Radio Science, 2009,24(2):243-248(in Chinese). 王勤,万显荣,杨子杰,等.基于CLEAN算法的非连续亦线性调频中断波信号处理
[J]. 电波科学学报,2009,24(2): 243-248.
/
| 〈 |
|
〉 |