期刊文献+
任意字段
题名或关键词
题名
关键词
文摘
作者
第一作者
机构
刊名
分类号
参考文献
作者简介
基金资助
栏目信息

基于局部频率估计和有限元的相位展开方法 被引量：4

Phase Unwrapping Approach Based on Local Frequency Estimation and Finite Element Method for Interferogram
下载PDF
导出
摘要 针对干涉数据质量不同的区域采取不同的展开策略,在最小二乘意义下利用有限元方法最小化不同的代价函数来实现。引入局部频率估计解决了相位展开的"坡度欠估计"问题,使用有限元方法利用了其可以适应任意不规则区域求解的特性。仿真和实测数据处理结果验证了本文方法的有效性,且与其它方法相比具有较高的精度。 Different strategies for regions were taken with different data quality, minimizing different cost functions in a least square sense via the finite element method （FEM）. The underestimation of phase slope was overcome via local frequency estimation. The FEM could easily handle any irregular shape problem domain, Experimental results, carried out on simulated and real data, validate the efficiency of the proposed approach, and show the advantage of the proposed approach over other approaches in accuracy.
作者 武楠 冯大政 刘宝泉
机构地区 西安电子科技大学雷达信号处理国家重点实验室
出处 《系统仿真学报》 EI CAS CSCD 北大核心 2007年第19期4574-4578,共5页 Journal of System Simulation
关键词 有限元方法 局部频率估计 相位展开 干涉 finite element method local frequency estimation phase unwrapping interferometry
分类号 TN957 [电子电信—信号与信息处理]
  • 相关文献

参考文献12

  • 1ROSEN P A,HENSLEY S,JOUGHIN I R,et al.Synthetic Aperture Radar Interferometry[J].Proceedings of the IEEE (S0018-9219),2000,88(3):333-382.
  • 2GHIGLIA D C,PRITT M D.Two-Dimensional Phase Unwrapping:Theory,Algorithms,and Software[M].New York:Wiley,1998.
  • 3GOLDSTEIN R,ZEBKER H A,WERNER C L.Satellite radar interferometry:Two-dimensional Phase Unwrapping[J].Radio Science (S0048-6604),1988,23(4):713-720.
  • 4XU W,CUMMING I.A Region Growing Algorithm for InSAR Phase Unwrapping[J].IEEE Trans.Geosci.Remote Sensing (S0196-2892),1999,37(1):124-134.
  • 5FORNARO G,SANSOSTI E.A Two-Dimensional Region Growing Least Squares Phase Unwrapping Algorithm for Interferometric SAR Processing[J].IEEE Trans.Geosci.Remote Sensing (S0196-2892),1999,37(5):2215-2226.
  • 6PRITT M D,SHIPMAN J S.Least-squares Two-dimensional Phase Unwrapping Using FFT[J].IEEE Trans.Geosci.Remote Sensing (S0196-2892),1994,32(3):706-708.
  • 7COSTANTINI M.A Novel Phase Unwrapping Method Based on Network Programming[J].IEEE Trans.Geosci.Remote Sensing (S0196-2892),1998,36(3):813-821.
  • 8SPAGNOLINI U.2-D Phase Unwrapping and Instantaneous Frequency Estimation[J].IEEE Trans.Geosci.Remote Sensing (S0196-2892),1995,33(3):579-589.
  • 9BAMLER R,ADAM N,DAVIDSON G W,JUST D.Noise-induce Slope Distortion in 2-D Phase Unwrapping by Linear Estimators with Application to SAR Interferometry[J].IEEE Trans.Geosci.Remote Sensing (S0196-2892),1998,36(3):913-921.
  • 10Young W Kwon,Hyochoong Bang.The Finite Element Method Using MATLAB[M].New York:CRC,2000.

二级参考文献8

  • 1Goodman J W. Some fundamental properties of speckle [J]. J. Opt. Soc. Am., 1976, 66(11): 1145-1150.
  • 2Musgrave F K. The synthesis and rendering of eroded fractal terrains [J]. Computer Graphics, 1989, 23(3): 41-50.
  • 3Ulaby F T, Dobson M C. Handbook of Radar scattering statistics for terrain [M]. NY: Artech House, 1989.
  • 4Holtzman J W, Frost V S, Abbot J L, Kaupp V H. Radar image simulation [J]. IEEE Transactions on Geoscience and Remote Sensing, 1978, 16(4): 296-303.
  • 5Franceschetti G, Lanari R. Synthetic aperture radar processing [M], London: CRC Press , 1999.
  • 6Gouinaud C, Pons I. Use of geometrical SAR simulation for visibility prediction: Application to mission planning and urban study [C]. IEEE IGRASS'96, 1996, 257-259.
  • 7Gelautz M, Frick H, Raggam J, Burgstaller J, Leberl F. SAR image simulation and analysis of alpine terrain [J]. ISPRS Journal of Photogrammetry & Remote Sensing, 1998, 53(1): 17-38.
  • 8Frankot R T, Chellappa R. Application of a shape from shading technique to synthetic aperture radar imagery [J]. IEEE Transactions on Pattern Analysis and Machine Intelligence, 1988, 10(4): 439-451.

共引文献12

同被引文献29

引证文献4

二级引证文献16

系统仿真学报
2007年 第19期

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部