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合成孔径雷达空间变迹带宽外推超分辨算法 被引量：4

A New SAR Superresolution Algorithm Based on Apodization Extrapolation
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摘要 提出一种变迹法带宽外推合成孔径雷达(SAR)超分辨率成像算法,可以提高合成孔径雷达成像分辨率并抑制旁瓣。利用空间变迹法(SVA)处理后的带宽扩展效应,对频谱进行幅度均衡使有效带宽扩展,并利用非整数倍Nyquist采样率空间变迹法对外推后的旁瓣抑制,得到输出的高分辨率图像。仿真实验和定量分析验证了本文方法的有效性。 The paper develops a new technique enhancing SAR resolution as well as suppressing sidelobes based on apodization technique. The method makes use of the effect of signal bandwidth expansion after apodization, and uses an inverse weight function to equalize the SVA spectrum. A modified noninteger Nyquist SVA formulation is used to suppress sidelobes after extrapolation. Examples and quantity analysis demonstrate the effectiveness of the paper＇s method.
作者 张平 杨汝良
机构地区 中国科学院研究生院 中国科学院电子学研究所
出处 《测绘学报》 EI CSCD 北大核心 2010年第1期71-75,共5页 Acta Geodaetica et Cartographica Sinica
关键词 合成孔径雷达(SAR) 空间变迹法(SVA) 带宽外推 超分辨率 synthetic aperture radar（SAR） spatially variant apodization（SVA） spectrum extrapolation superresolution
分类号 TN958 [电子电信—信号与信息处理]
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参考文献10

  • 1CURLANDER J C, MCDONOUGH R N. Synthetic Aperture Radar Systems and Signal Processing[M]. New York: John Wiley & Sons, Inc, 1991.
  • 2DEGRAAF S R. SAR Imaging via Modern 2-D Spectral Estimation Methods[J]. IEEE Transactions on Image Processing, 1998, 7(5): 729-761.
  • 3STANKWITZ H C, DALLAIRE R J, FIENUP J R. Nonlinear Apodization for Sidelobe Control in SAR Imagery[J]. IEEE Trans Aerosp Electron Syst, 1995, 31(1): 267-279.
  • 4STANKWITZ H C, KOSEK M R. Sparse-aperture Fill for SAR Using Super-SVA[C] //Proc 1996 IEEE National Radar Conference. Ann Arbor: IEEE Press, 1996:70-75.
  • 5ZHAI Wenshuai, ZHANG Yunhua. Apply Spatially Variant Apodization to SAR/INSAR Image Processing[C]//1st Asian and Pacific Conference on Synthetic Aperture Radar, APSAR 2007, Huangshan; IEEE Press, 2007 : 54-57.
  • 6CARLOS F C R, SERGIO L R, MATEO B G. Spatially Variant Apodization for Squinted Synthetic Aperture Radar Images [J]. IEEE Transactions on Image Processing, 2007, 16(8): 2023-2027.
  • 7SMITH B H. Generalization of Spatially Variant Apodization to Noninteger Nyquist Sampling Rates[J]. IEEE Trans Image Process, 2000, 9(6): 1088-1093.
  • 8CABRERA S D, PARKS T W. Extrapolation and Spectral Estimation with Iterative Weighted Norm Modification[J]. IEEE Trans on Signal Processing, 1991, 39(4): 842-851.
  • 9GUPTA I J, MARK J B, MOGHADDAR A. Data Extrapolation for High Resolution Radar Imaging[J]. IEEE Tans Antennas Propagat, 1994, 42:1540 1545.
  • 10SUWA K, IWAMOTO M. A Two-dimensional Bandwidth Extrapolation Technique for Polarimetric Synthetic Aperture Radar Images[J]. IEEE Transactions on Geoscience and Remote Sensing, 2007, 45(1): 45-54.

同被引文献36

  • 1NI Chong1,2,WANG YanFei1,XU XiangHui1,ZHOU ChangYi1 & CUI PengFei1,2 1 Institute of Electronics,Chinese Academy of Sciences,Beijing 100190,China,2 Graduate University of Chinese Academy of Sciences,Beijing 100039,China.A SAR sidelobe suppression algorithm based on modified spatially variant apodization[J].Science China(Technological Sciences),2010,53(9):2542-2551. 被引量：6
  • 2张平,杨汝良.一种基于自适应加权的合成孔径雷达超分辨率成像算法[J].遥测遥控,2009,30(4):45-49. 被引量：1
  • 3许人灿,姜卫东,陈曾平.基于最大熵谱估计的距离-多普勒成像[J].现代雷达,2005,27(5):22-24. 被引量：5
  • 4李斌,慈林林,万建伟,姚康泽,王岩.提高ISAR分辨率的两种外推方法性能之比较[J].雷达科学与技术,2006,4(6):358-362. 被引量：5
  • 5Cumming I G Wong F H. Digital processing of synthetic aperture radar data[M]. Boston, London: Artech House, 2005: 5-10.
  • 6Cetin M, Stojanovic I, Onhon N O, et al. Sparsity-driven synthetic aperture radar imaging: Reconstruction, autofocusing, moving targets, and compressed sensing[J]. IEEE Signal Processing Magazine, 2014, 31(4): 27-40.
  • 7Degraaf S R. SAR imaging via modem 2-D spectral estimation methods[J]. IEEE Transactions on Image Processing, 1998, 7(5): 729-761.
  • 8Wu M, Xing M D, Zhang L, et al. Super-resolution imaging algorithm based on attributed scattering center model[C]//2014 IEEE China Summit & International Conference on Signal and Information Processing (ChinaSIP). Xi'an, 2014: 271-275.
  • 9Gupta I J, Beals M J, Moghaddar A. Data extrapolation for high resolution radar imaging[J]. IEEE Transactions on Antennas and Propagation, 1994, 42(11): 1540-1545.
  • 10Erer I. A new data extrapolation algorithm for high resolution ISAR imaging[J]. AEU-Intemational Journal of Electronics and Communications, 2006, 60(4): 316-319.

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测绘学报
2010年 第1期

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