Phase unwrapping through a branch-cut based recursive patching method

被引：0

作者：

Wang, ZJ ^{[1
]}

Li, SS ^{[1
]}

机构：

[1] Univ Alaska, Inst Geophys, Fairbanks, AK 99775 USA

来源：

IGARSS '98 - 1998 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM, PROCEEDINGS VOLS 1-5: SENSING AND MANAGING THE ENVIRONMENT | 1998年

关键词：

D O I：

10.1109/IGARSS.1998.691476

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The processing required for interferometric Synthetic Aperture Radar (SAR) applications includes a technique for unwrapping phase in a two-dimensional region. The phase unwrapping technique is usually based on Goldstein's branch-cut approach [1]. However, this conventional approach has limitations when dealing with interferograms with high noise levels. We present a method based on the conventional approach with two new features: 1. We open cuts and unwrap holes while maintaining overall consistency between phases across cuts around each hole. 2. We recursively fill progressively smaller closed areas by adding rectangular patches, while maintaining maximum phase consistency in the overlapped unwrapped areas. The approach is verified on actual SAR data.

引用

页码：1431 / 1433

页数：3

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