InSAR Phase Unwrapping based on Extended Kalman Filtering

被引：0

作者：

Osmanoglu, Batuhan ^{[1
]}

Wdowinski, Shimon ^{[1
]}

Dixon, Timothy H. ^{[1
]}

Biggs, Juliet ^{[1
]}

机构：

[1] Univ Miami, Rosenstiel Sch Marine & Atmospher Sci, Key Biscayne, FL 33149 USA

来源：

2009 IEEE RADAR CONFERENCE, VOLS 1 AND 2 | 2009年

关键词：

SATELLITE RADAR INTERFEROMETRY; SAR INTERFEROMETRY; DEFORMATION; SUBSIDENCE;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

InSAR phase measurements are relative, ambiguous due to 2 pi wrapping, and affected by atmospheric and other noise sources. For many real-world applications unambiguous displacement measurements are necessary. Currently available methods for extracting time series of surface displacement, start with unwrapping in time or space domain. We present a new extended Kalman filtering approach to phase unwrapping, which resolves the 2 pi ambiguity in a computationally efficient way. Also this algorithm can easily be expanded to use all the data available in space and time dimensions. Several modifications are made to the standard EKF for phase unwrapping. Hence we call our new algorithm as optimized Kalman (OK) filter.

引用

页码：906 / 909

页数：4

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