西安电子科技大学学报（自然科学版）2011，Vol.38Issue(1)：110-116,7.DOI:10.3969/j.issn.1001-2400.2011.01.018
基于相位梯度的干涉条纹图配准方法
Coregistration of multiple-pass interferograms of a single-baseline InSAR system based on phase gradients
摘要
Abstract
It is a practical and feasible way to acquire multibaseline interferometric data by utilizing repeat passes of a single-baseline InSAR system. Due to the high coherence, the single-pass pair of SAR images generated by a single-baseline InSAR can be coregistered using conventional methods. However, there exist extreme difficulties in the coregistration operation for multiple-pass SAR images due to the serious temporal and spatial baseline decorrelation, especially in the case of large effective cross-track baseline lengths. Fortunately,the repeat-pass interferograms obtained by a single-baseline InSAR correspond to the identical terrain, i.e.,Digital Elevation Model (DEM). Hence the interferograms contain coherent information, even if the SAR images are decorrelated completely. Based on this point, we propose an innovative strategy to coregister the repeat-pass interferograms instead of the SAR images. Computer simulation results show that the proposed method has the ability to align multiple-pass interferograms of a single-baseline InSAR system accurately.关键词
干涉合成孔径雷达/数字高程模型(DEM)/多基线/多航过/干涉条纹图配准分类
信息技术与安全科学引用本文复制引用
郭交,李真芳,保铮..基于相位梯度的干涉条纹图配准方法[J].西安电子科技大学学报（自然科学版）,2011,38(1):110-116,7.基金项目
国家自然科学基金资助项目(60802074) （60802074）
教育部新世纪优秀人才支持计划资助项目 （）
中央高校基本科研业务费专项资金资助项目(JY10000902011) （JY10000902011）
高等学校博士学科点专项科研基金资助项目 （）
