An iterative method to improve phase unwrapping of noisy interferograms

被引：1

作者：

Mori, A ^{[1
]}

Rapaccini, A ^{[1
]}

机构：

[1] Univ Florence, Dipartmento Ingn Elett, I-50139 Florence, Italy

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.1998.702800

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Extraction of topographic Digital Elevation Model (DEM) by interferometric data requires the recovering of interferometric phase absolute value from its principal value (measured). This is carried out by appropriate algorithms named Phase Unwrapping algorithms. We propose a Phase Unwrapping algorithm that estimates phase gradient by a multiresolution approach and computes the final interferometric phase by an iterative process. Several examples show that few iterative steps are enough to reach the maximum of performances with respect to algorithms that compute absolute interferometric phase value directly from a gradient estimate.

引用

页码：65 / 67

页数：3