A new method about placement of the branch cut in two-dimensional phase unwrapping

摘要：

Phase unwrapping is one of the key problems in data processing of interferometric synthetic aperture radar (InSAR). One of the classic unwrapping algorithms is the path-following approach based on placement of branch cut. In this paper, we prove that existence of residues is a sufficient but unnecessary condition for the original phase discontinuity and the true placement of the branch cut is unique. Then a modified method of placing branch cuts which is guided by improved quality map is proposed. The simulation examples show that the modified method is more effective and practicable.

关键词： Phase unwrapping residues branch cut InSAR

作者: Xiao Feng Wu Jicang Zhang Lei Li Xiaoling

作者单位: Dept.of Surveying and Geo-informatics,Tongji University,Shanghai 200092

会议类型: 国际会议

会议名称: 首届亚太合成孔径雷达会议(1st Asian and Pacific Conference on Synthetic Aperture Radar Proceedings)

会议地点: 安徽黄山

会议语种:英文

在线出版日期: 2007-11-05（万方平台首次上网日期，不代表论文的发表时间）