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一种基于逆问题的差分干涉SAR层析成像方法

任笑真 杨汝良

任笑真, 杨汝良. 一种基于逆问题的差分干涉SAR层析成像方法[J]. 电子与信息学报, 2010, 32(3): 582-586. doi: 10.3724/SP.J.1146.2009.00259
引用本文: 任笑真, 杨汝良. 一种基于逆问题的差分干涉SAR层析成像方法[J]. 电子与信息学报, 2010, 32(3): 582-586. doi: 10.3724/SP.J.1146.2009.00259
Ren Xiao-zhen, Yang Ru-liang. An Inverse Problem Based Approach for Differential SAR Tomography Imaging[J]. Journal of Electronics & Information Technology, 2010, 32(3): 582-586. doi: 10.3724/SP.J.1146.2009.00259
Citation: Ren Xiao-zhen, Yang Ru-liang. An Inverse Problem Based Approach for Differential SAR Tomography Imaging[J]. Journal of Electronics & Information Technology, 2010, 32(3): 582-586. doi: 10.3724/SP.J.1146.2009.00259

一种基于逆问题的差分干涉SAR层析成像方法

doi: 10.3724/SP.J.1146.2009.00259

An Inverse Problem Based Approach for Differential SAR Tomography Imaging

  • 摘要: 高度-速率维成像时,差分干涉层析成像合成孔径雷达获取的观测数据在基线-时间平面非均匀分布。若直接对观测数据进行两维傅里叶变换来恢复散射体高度-速率维像,则因强副瓣存在,成像效果不理想。该文将差分干涉层析成像合成孔径雷达高度-速率维成像问题归结为2维积分方程的逆问题,提出了一种采用Backus-Gilbert算法实现差分干涉SAR层析成像的新方法,并使用Tikhonov正则化获得逆问题的正则解。仿真结果表明该文提出的方法能够克服基线时间不均匀造成的影响,获得较好的成像结果。
  • Reigber A and Moreira A. First demonstration of airborneSAR tomography using multibaseline L-band data[J].IEEETransactions on Geoscience and Remote Sensing.2000, 38(5):2142-2152[2]Lombardini F, Pardini M, and Verrazzani L. A robustmultibaseline sector interpolator for 3D SAR imaging.Proceedings of EUSAR 2008, Friedrichshafen, Germany, June2008, (2): 69-72.[3]Nannini M, Scheiber R, and Horn R. Imaging of targetsbeneath foliage with SAR tomography. Proceedings ofEUSAR 2008, Friedrichshafen, Germany, June 2008, (3):241-244.[4]Damoah-afari P, Ding Xiao-li, and Li Zhi-wei, et al.. Six yearsof land subsidence in shanghai revealed by JERS-1 SAR data.Proceedings of IEEE IGARSS 2007, Barcelona Spain, July2007: 2093-2097.[5]Lombardini F. Differential tomography: A new framework forSAR interferometry[J].IEEE Transactions on Geoscience andRemote Sensing.2005, 43(1):1-8[6]Lombardini F. New potentials of differential SARtomography: volumetric differential interferometry androbust DEM generation. Proceedings of IEEE IGARSS 2007,Barcelona Spain, July 2007: 5281-5284.[7]Serafino F, Soldovieri F, and Lombardini F, et al.. Singularvalue decomposition applied to 4D SAR imaging.Proceedings of IEEE IGARSS 2005, Seoul, Korea, July 2005:2701-2704.[8]Hon Y C and Wei T. Backus-Gilbert Algorithm for theCauchy Problem of the Laplace Equation. Institute of physicsPublishing, 2000: 261-271.[9]Fornaro G, Serafino F, and Soldovieri F. Three-dimensionalfocusing with multipass SAR data[J].IEEE Transactions onGeoscience and Remote Sensing.2003, 41(3):507-517[10]Fornaro G, Lombardini F, and Serafino F. Three-dimensionalmultipass SAR focusing: experiments with long-termspaceborne data[J].IEEE Transactions on Geoscience andRemote Sensing.2005, 43(4):702-714[11]Xia Xiang-gen, C-C Jay Kuo, and Zhang Zhen. Thegeneralized Backus-Gilbert inversion method for signalrecovery in multiresolution spaces. Processings of ICASSP1994, Adelaide, SA, Australia, 1994: 281-284.[12]Caccin B, Roberti C, and Russo P, et al.. The Backus-Gilbertinversion method and the processing of sampled data[J].IEEETransactions on Signal Processing.1992, 40(11):2823-2825[13]Anterrieu E. Regularization of an inverse problem in remotesensing imaging by aperture synthesis. Proceedings ofICASSP 2006, Toulouse, France, 2006: 805-808.
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出版历程
  • 收稿日期:  2009-03-04
  • 修回日期:  2009-09-11
  • 刊出日期:  2010-03-19

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