期刊文献+

基于短时傅里叶变换的干涉相位解缠方法 被引量:5

InSAR Phase Unwrapping Algorithm Based on Two-dimensional Windowed Fourier Transform
下载PDF
导出
摘要 提出了一种基于二维短时傅里叶变换的干涉相位图解缠方法。该方法首先将干涉相位数据转变成指数,利用二维短时傅里叶变换进行处理,设置阈值,进行二维短时傅里叶逆变换;最后,求取复数相位,获得滤波后干涉相位,达到降低噪声和清除残差点的目的,并利用改进的Itoh方法对滤波后的相位进行相位解缠。仿真和实测数据处理结果验证了该方法的有效性,且与其他方法相比具有较高的精度。 A two-dimensional phase unwrapping approach based on two-dimensional windowed Fourier transform (WFT) is proposed. First, the interferogram phases are transformed into an exponential field, then the exponential data are processed by WFT, and a threshold is selected to reduce noise, and the filtered exponential data are obtained by inverse WFF (IWFT). Finally, the filtered wrapped phases are computed by filtered exponential data; the noise and its residues are first removed, then phases are unwrapped by modified Itoh method. Experimental results, carried out on simulated and real data, validate the efficiency of the proposed approach, and showed the advantage of the proposed approach over other approaches in accuracy.
出处 《现代雷达》 CSCD 北大核心 2009年第9期55-58,共4页 Modern Radar
基金 陕西省自然科学基础研究计划资助项目 西北工业大学科技创新基金资助项目(2006CR11)
关键词 二维短时傅里叶变换 干涉合成孔径雷达 干涉相位图 相位解缠 two-dimensional windowed Fourier transform InSAR interferogram phase unwrapping
  • 相关文献

参考文献10

  • 1Rosen P A, Hensley S, Joughin I R, et al. Synthetic aperture radar interferometry [ J ] . Proc . IEEE, 2000,88 ( 3 ) : 333 - 382.
  • 2Ghiglia D C, Pritt M D. Two-dimensional phase un- wrapping: Theory, Algorithms, and Software [ M ]. New York : Wiley, 1998:74 -76.
  • 3Goldstein R M, Zebker H A, Werner C L. Satellite radar interferometry : Two-dimensional phase unwrapping [ J ]. RadioScience, 1988,23 (4) :713 -720.
  • 4Xu W, Cumming I. A region growing algorithm for InSAR phase unwrapping [ J ]. IEEE Trans. on Geosci. Remote Sensing, 1999, 37( 1 ) : 124 - 134.
  • 5Fomaro G, Sansosti E. A two-dimensional region growing least squares phase unwrapping algorithm for interferometric SAR processing[ J ]. IEEE Trans. on Geosci. Remote Sensing, 1999,37(5) :2215 -2226.
  • 6Pritt M D, Shipman J S. I_east-squares two-dimensional phase unwrapping using FFT [ J ]. IEEE Trans. on Geosci. Remote Sensing, 1994,32 (3) :706 - 708.
  • 7Costantini M. A novel phase unwrapping method based on network programming[J]. IEEE Trans. on Geosci. Remote Sens. 1998,36 (3) :813 -821.
  • 8Mallat S. A wavelet tour of signal processing[ M]. 2nd ed. New York : Academic Press ; 1999.
  • 9Teolis A. Computational signal processing with wavelets [ M]. Boston: Birkha user; 1998.
  • 10Kemao Q. On widow size selection in the windowed fou-rier ridges algorithm[J]. Opt Lasers Eng, 2007,45:1186 - 1192.

同被引文献26

  • 1何勇,朱日宏,陈磊.基于区域生长理论的波面解包算法研究[J].光学技术,2006,32(4):594-597. 被引量:10
  • 2张曦,杜兴民,茹乐.改进的快速短时傅里叶变换算法在跳频信号分析中的应用[J].探测与控制学报,2007,29(2):30-34. 被引量:8
  • 3栾海妍,江桦,刘小宝.自适应短时傅立叶变换算法的研究[J].通信技术,2007(8):1-3. 被引量:11
  • 4葛锦蔓 苏俊宏.干涉图处理技术在膜厚测量中的应用.红外与激光工程,2009,38:213-216.
  • 5葛锦蔓 苏俊宏.薄膜厚度测量的干涉图处理技术.中国激光,2009,36(2):1-5.
  • 6CARBALLO G F,FIEGUTH P W.Probabilistic cost functions for network flow phase unwrapping[J].IEEE Trans.Geosci.Remote Sens,2000,38(5):2192-2201.
  • 7KUO S M,LEE B H.实时数字信号处理[M].卢伯英,译.北京:中国铁道出版社,2005.
  • 8王晓君.雷达侦察信号处理系统的实现技术研究[D].北京:北京理工大学,2010:15-18.
  • 9Zhong Heping, Zhang Sen, Tang Jinsong. Path following al- gorithm for phase unwrapping based on priority queue and quantized quality map [ C]//2009 International Conference on Computational Intelligence and Software Engineering. [ S. 1. ] : IEEE Press, 2009 : 1-4.
  • 10Xu W, Cumming I. A region-growing algorithm for InSAR phase unwrapping [ J ]. IEEE Transactions on Geoscience and Remote Sensor, 1999,37 ( 1 ) : 124-134.

引证文献5

二级引证文献19

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