双站SAR图像的极化分析

徐丰; 金亚秋

doi:10.3724/SP.J.1146.2007.01104

双站SAR图像的极化分析

doi: 10.3724/SP.J.1146.2007.01104

徐丰,
金亚秋

基金项目:

国家重点基础研究(2001CB309400)和国家自然科学基金(40637033，60571050)资助课题

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- 被引次数: 0
出版历程
- 收稿日期: 2007-07-02
- 修回日期: 2008-04-03
- 刊出日期: 2009-01-19

Bistatic SAR Polarimetric Analysis

Xu Feng,
Jin Ya-qiu

摘要

摘要: 该文对双站SAR(BISAR)模拟图像不同地物的极化特征分析，发现传统单站极化特征参数(,,)在BISAR图像上不再能有效地表现地物散射的极化特征。由此，提出了统一双站极化基变换，重新定义了极化特征参数,,，使其保持原有的分离取向关联等优点。经统一双站极化基变换后，不同地物散射的极化特征更明显，重新定义的,,能反应不同散射机制，提供了BISAR图像解译和地表分类的初步手段。
- 双站极化SAR;模拟双站SAR图像;极化特征分析
Abstract: Making use of bistatic SAR image simulation, polarimetric characteristics of BISAR image are studied. It is found that some conventional polarimetric parameters, such as Cloudes , ,, for interpretation of monostatic SAR image lose their effectiveness for bistatic case. A transform of the unified bistatic polar bases for BISAR image is presented, and the polarimetric parameters, i.e. ,,, are redefined to preserve their merits of orientation independence. Image simulations show that the polarimetric characteristics of different terrain surfaces are well described using these unified bistatic polar bases, and newly redefined ,, are also applicable to interpret different scattering mechanism. It provides a new way for bistatic image interpretation and information retrievals.

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参考文献(1)

汤子跃, 张守融. 双站合成孔径雷达系统原理. 北京: 科学出版社, 2003, 第1 章.[2]Krieger G and Moreira A. Multistatic SAR satelliteformations: Potentials and challenges. Proc. IGARSS '05,Seoul, Korea, July 25-28 2005, 4(25-29): 2680-2684.[3]Loffeld O, Nies H, Peters V, and Knedlik S. Models anduseful relation for bistatic SAR processing[J].IEEE Trans. onGeosci. Remote Sens.2004, 42(10):2031-2038[4]Younis M, Metzig R, and Krieger G. Performance predictionand verification for bistatic SAR synchronization link. The6th European Conference on Synthetic Aperture Radar(EUSAR06), Dresden, Germany May 16-18 2006.[5]McLaughlin D, et al.. Fully polarimetric bistatic radarscattering behavior of forested hills. IEEE Trans. on Geosci.Remote Sens., 2002, 50(2): 101-110.[6]Liang P, Pierce L E, and Moghaddam M. Radiative transfermodel for microwave bistatic scattering from forest canopies[J].IEEE Trans. on Geosci. Remote Sens.2005, 43(11):2470-2483[7]Xu F and Jin Y Q. Imaging simulation of polarimetricsynthetic aperture radar for comprehensive terrain sceneusing the mapping and projection algorithm[J].IEEE Trans. onGeosci. Remote Sens.2006, 44(11):3219-3234[8]徐丰. 全极化合成孔径雷达的正向与逆向遥感理论. [博士论文], 复旦大学, 2007.[9]Cloude S and Pottier E. A review of target decompositiontheorems in radar polarimetry[J].IEEE Trans. on Geosci.Remote Sens.1996, 34(2):498-518[10]Cloude S R. On the status of bistatic polarimetry theory.Proc. IGARSS05, Seoul, South Korea, 25-29 July 2005.[11]Cloude S R. Information extraction in bistatic polarimetry.The 6th European Conference on Synthetic Aperture Radar(EUSAR06), Dresden, Germany May 16-18 2006.[12]Xu F and Jin Y Q. Deorientation theory of polarimetricscattering targets and application to terrain surfaceclassification[J].IEEE Trans. on Geosci. Remote Sens.2005,43(10):2351-2364

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